Finding the Third Proportional to 72,939,865 and 115,498,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,939,865 : 115,498,429.50 = 115,498,429.50 : x
2. Step 2: Convert to fraction form
   72,939,865/115,498,429.50 = 115,498,429.50/x
3. Step 3: Cross multiply
   72,939,865x = 115,498,429.50 × 115,498,429.50
4. Step 4: Simplify right side
   72,939,865x = 13,339,887,216,966,470
5. Step 5: Solve for x
   x = 13,339,887,216,966,470/72,939,865
6. Step 6: Final answer
   x = 182,888,838.87