Answer:
5.2776558e+14
Step-by-step explanation:
[tex]a_{n} =a_{1} *r^{n-1}[/tex]
15, 30, 60
[tex]a_{46} =15(2)^{46-1}[/tex]
[tex]a_{46}[/tex] = 5.2776558e+14
hope it helps :)
mark brainliest!