Finding the Third Proportional to 74,004.50 and 81,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,004.50 : 81,517.50 = 81,517.50 : x
2. Step 2: Convert to fraction form
   74,004.50/81,517.50 = 81,517.50/x
3. Step 3: Cross multiply
   74,004.50x = 81,517.50 × 81,517.50
4. Step 4: Simplify right side
   74,004.50x = 6,645,102,806.25
5. Step 5: Solve for x
   x = 6,645,102,806.25/74,004.50
6. Step 6: Final answer
   x = 89,793.23