Finding the Third Proportional to 72,150.75 and 113,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,150.75 : 113,359.50 = 113,359.50 : x
2. Step 2: Convert to fraction form
   72,150.75/113,359.50 = 113,359.50/x
3. Step 3: Cross multiply
   72,150.75x = 113,359.50 × 113,359.50
4. Step 4: Simplify right side
   72,150.75x = 12,850,376,240.25
5. Step 5: Solve for x
   x = 12,850,376,240.25/72,150.75
6. Step 6: Final answer
   x = 178,104.54