I need help to solve this (10^5 x 4.6) x ( 10^7 x 3.2)=?

(10^5 x 4.6)(10^7 x 3.2)
= (100000 x 4.6)(10000000 x 3.2)
= (460000)(32000000)
= 14720000000000
= 1.472 x 10^13

this is 10^5*10^7*3.2*4.6 = 3.2*4.6*10^12 = 14.72*10^12 = 14720000000000 or 1.472*10^13

the above is correct

100^35x14.72

4.6 * 3.2 * 10^12
=1.472 x 10^13