Finding the Third Proportional to 72,325,810 and 109,161,320

Step by Step Solution

1. Step 1: Write the proportion equation
   72,325,810 : 109,161,320 = 109,161,320 : x
2. Step 2: Convert to fraction form
   72,325,810/109,161,320 = 109,161,320/x
3. Step 3: Cross multiply
   72,325,810x = 109,161,320 × 109,161,320
4. Step 4: Simplify right side
   72,325,810x = 11,916,193,784,142,400
5. Step 5: Solve for x
   x = 11,916,193,784,142,400/72,325,810
6. Step 6: Final answer
   x = 164,757,142.49