SOLUTION: Find the missing term of the geometric sequence. 45, x, 1620

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Question 634103: Find the missing term of the geometric sequence.
45, x, 1620
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

a%5Bn%5D+=+45%2Ar%5E%28n-1%29



a%5B3%5D+=+45%2Ar%5E%282%29=+1620 r^2 = 36,  r = 6

a%5B2%5D=+45%2A6+%5E1+=+270