Answer:
6, 18
Step-by-step explanation:
If the common ratio is r, the first missing term is 2r; the second missing term is 2r^2, and the last term shown is 2r^3 = 54. Then ...
r^3 = 54/2 = 27
r = 3
and the missing terms are ...
2·3 = 6
2·3^2 = 6·3 = 18
