Finding the Third Proportional to 81,814.50 and 173,517.75

Step by Step Solution

1. Step 1: Write the proportion equation
   81,814.50 : 173,517.75 = 173,517.75 : x
2. Step 2: Convert to fraction form
   81,814.50/173,517.75 = 173,517.75/x
3. Step 3: Cross multiply
   81,814.50x = 173,517.75 × 173,517.75
4. Step 4: Simplify right side
   81,814.50x = 30,108,409,565.06
5. Step 5: Solve for x
   x = 30,108,409,565.06/81,814.50
6. Step 6: Final answer
   x = 368,008.23