Answer:
Step-by-step explanation:
The numbers x, and y are the first three terms of an arithmetic progression.
For three consecutive terms, a, b and c of an arithmetic sequence:
The arithmetic mean,
Therefore:
The numbers x, and y are three consecutive terms of a geometric progression.
For three consecutive terms, a, b and c of a geometric sequence:
The geometric mean,
Therefore:
Substituting derived above, we have:
This is a quadratic equation which we can then solve for y.
Using a calculator, we obtain:
Therefore, the values of x and y are: