Finding the Third Proportional to 87,328 and 131,500.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,328 : 131,500.50 = 131,500.50 : x
2. Step 2: Convert to fraction form
   87,328/131,500.50 = 131,500.50/x
3. Step 3: Cross multiply
   87,328x = 131,500.50 × 131,500.50
4. Step 4: Simplify right side
   87,328x = 17,292,381,500.25
5. Step 5: Solve for x
   x = 17,292,381,500.25/87,328
6. Step 6: Final answer
   x = 198,016.46