Question

After the first term in a sequence, the ratio of each term to the preceding term is r. If the first term is a, what is the third term?
(15 POINTS AND FREE BRAINIEST ANSWER!!)

Answer 1

First term is a₁.  Second term I call a₂.  We know that a₂/a₁ = r.  The third term is a₃ and we know also that a₃/a₂ = r.  Set these r's equal
a₃/a₂ = a₂/a₁.  solve for a₃ : a₃ = (a₂)²/a₁.  Or a₃ = a₂r

Answer 2

Had got the same answer as the other person..