Finding the Third Proportional to 99,470,620 and 214,057,790

Step by Step Solution

1. Step 1: Write the proportion equation
   99,470,620 : 214,057,790 = 214,057,790 : x
2. Step 2: Convert to fraction form
   99,470,620/214,057,790 = 214,057,790/x
3. Step 3: Cross multiply
   99,470,620x = 214,057,790 × 214,057,790
4. Step 4: Simplify right side
   99,470,620x = 45,820,737,459,684,096
5. Step 5: Solve for x
   x = 45,820,737,459,684,096/99,470,620
6. Step 6: Final answer
   x = 460,645,942.09