Finding the Third Proportional to 59,420.25 and 81,718.88

Step by Step Solution

1. Step 1: Write the proportion equation
   59,420.25 : 81,718.88 = 81,718.88 : x
2. Step 2: Convert to fraction form
   59,420.25/81,718.88 = 81,718.88/x
3. Step 3: Cross multiply
   59,420.25x = 81,718.88 × 81,718.88
4. Step 4: Simplify right side
   59,420.25x = 6,677,974,531.27
5. Step 5: Solve for x
   x = 6,677,974,531.27/59,420.25
6. Step 6: Final answer
   x = 112,385.50