Order the numbers from greatest to least

2.4x10^3
5.5x10^4
0.0062
7.6x10^-2
8900
1.2x10^4

1. 5.5x10^4

2. 1.2x10^4
3. 8900
4. 2.4x10^3
5. 0.0062
6. 7.6x10^-2