Yes because when dealing with 10 squared times 10 to the fourth power you must multiply the exponents and you will get 10 to the sixth power.
30,000
45,300
47,470
23000
24,000
2.1x1010 (30,000 x 700,000)
37.7
100 times less
50,600 10 to the fourth power = 10000 10 to the second power = 100 5 x 10,000 = 50,000 6 x 100 = 600
1.9647 10^4 = 19647
4.526*10-4 = 0.0004526