Finding the Third Proportional to 91,766.50 and 141,831.75

Step by Step Solution

1. Step 1: Write the proportion equation
   91,766.50 : 141,831.75 = 141,831.75 : x
2. Step 2: Convert to fraction form
   91,766.50/141,831.75 = 141,831.75/x
3. Step 3: Cross multiply
   91,766.50x = 141,831.75 × 141,831.75
4. Step 4: Simplify right side
   91,766.50x = 20,116,245,308.06
5. Step 5: Solve for x
   x = 20,116,245,308.06/91,766.50
6. Step 6: Final answer
   x = 219,211.21