Finding the Third Proportional to 40,490.75 and 87,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,490.75 : 87,132.50 = 87,132.50 : x
2. Step 2: Convert to fraction form
   40,490.75/87,132.50 = 87,132.50/x
3. Step 3: Cross multiply
   40,490.75x = 87,132.50 × 87,132.50
4. Step 4: Simplify right side
   40,490.75x = 7,592,072,556.25
5. Step 5: Solve for x
   x = 7,592,072,556.25/40,490.75
6. Step 6: Final answer
   x = 187,501.41