The third ordered pair that satisfy the given equation is (123, 369).
The given parameters;
![a^2 + b^2 = 10(123)^2](https://tex.z-dn.net/?f=a%5E2%20%2B%20b%5E2%20%3D%2010%28123%29%5E2)
- <em>First pair of the equation, = (39, 387)</em>
- <em>Second pair of the equation = (201, 333).</em>
The third ordered pair of the equation can be determined by using general equation of a circle;
![a^2 + b^2 = r^2\\\\a^2 + b^2 = (123\sqrt{10} )^2\\\\a^2 + b^2 = (\sqrt{151290} )^2\\\\a^2 + b^2 = 151290\\\\a^2 = 151290- b^2\\\\ a= \sqrt{151290 - b^2}](https://tex.z-dn.net/?f=a%5E2%20%2B%20b%5E2%20%3D%20r%5E2%5C%5C%5C%5Ca%5E2%20%2B%20b%5E2%20%3D%20%28123%5Csqrt%7B10%7D%20%29%5E2%5C%5C%5C%5Ca%5E2%20%2B%20b%5E2%20%3D%20%28%5Csqrt%7B151290%7D%20%29%5E2%5C%5C%5C%5Ca%5E2%20%2B%20b%5E2%20%3D%20151290%5C%5C%5C%5Ca%5E2%20%3D%20151290-%20b%5E2%5C%5C%5C%5C%20a%3D%20%5Csqrt%7B151290%20-%20b%5E2%7D)
The radius of the circle is calculated as;
![r^2 = 151290\\\\r = \sqrt{151290} \\\\r = 388.96](https://tex.z-dn.net/?f=r%5E2%20%3D%20151290%5C%5C%5C%5Cr%20%3D%20%5Csqrt%7B151290%7D%20%5C%5C%5C%5Cr%20%3D%20388.96)
The value of a can be obtained by randomly choosing numbers less than the radius as values of b.
![b < r\\\\b < 388.96](https://tex.z-dn.net/?f=b%20%3C%20r%5C%5C%5C%5Cb%20%3C%20388.96)
![a = \sqrt{151290 \ - \ (387)^2} \\\\a = 39\\\\(39, \ 387)\\\\a = \sqrt{151290 \ - \ (333)^2}\\\\a = 201\\\\(201, \ 333)\\\\a = \sqrt{151290 \ - \ (369)^2}\\\\a = 123\\\\(123, \ 369)](https://tex.z-dn.net/?f=a%20%3D%20%5Csqrt%7B151290%20%5C%20-%20%5C%20%28387%29%5E2%7D%20%5C%5C%5C%5Ca%20%3D%2039%5C%5C%5C%5C%2839%2C%20%5C%20387%29%5C%5C%5C%5Ca%20%3D%20%5Csqrt%7B151290%20%5C%20-%20%5C%20%28333%29%5E2%7D%5C%5C%5C%5Ca%20%3D%20201%5C%5C%5C%5C%28201%2C%20%5C%20333%29%5C%5C%5C%5Ca%20%3D%20%5Csqrt%7B151290%20%5C%20-%20%5C%20%28369%29%5E2%7D%5C%5C%5C%5Ca%20%3D%20123%5C%5C%5C%5C%28123%2C%20%5C%20369%29)
Thus, the third ordered pair that satisfy the given equation is (123, 369).
Learn more about equation of circle here: brainly.com/question/1506955