Finding the Third Proportional to 72,521,012 and 112,457,861

Step by Step Solution

1. Step 1: Write the proportion equation
   72,521,012 : 112,457,861 = 112,457,861 : x
2. Step 2: Convert to fraction form
   72,521,012/112,457,861 = 112,457,861/x
3. Step 3: Cross multiply
   72,521,012x = 112,457,861 × 112,457,861
4. Step 4: Simplify right side
   72,521,012x = 12,646,770,500,695,320
5. Step 5: Solve for x
   x = 12,646,770,500,695,320/72,521,012
6. Step 6: Final answer
   x = 174,387,672.65