Finding the Third Proportional to 86,332.50 and 187,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,332.50 : 187,150.50 = 187,150.50 : x
2. Step 2: Convert to fraction form
   86,332.50/187,150.50 = 187,150.50/x
3. Step 3: Cross multiply
   86,332.50x = 187,150.50 × 187,150.50
4. Step 4: Simplify right side
   86,332.50x = 35,025,309,650.25
5. Step 5: Solve for x
   x = 35,025,309,650.25/86,332.50
6. Step 6: Final answer
   x = 405,702.48