Finding the Third Proportional to 11,915,469 and 25,457,552

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915,469 : 25,457,552 = 25,457,552 : x
2. Step 2: Convert to fraction form
   11,915,469/25,457,552 = 25,457,552/x
3. Step 3: Cross multiply
   11,915,469x = 25,457,552 × 25,457,552
4. Step 4: Simplify right side
   11,915,469x = 648,086,953,832,704
5. Step 5: Solve for x
   x = 648,086,953,832,704/11,915,469
6. Step 6: Final answer
   x = 54,390,385.63