Finding the Third Proportional to 39,730.50 and 57,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,730.50 : 57,118.50 = 57,118.50 : x
2. Step 2: Convert to fraction form
   39,730.50/57,118.50 = 57,118.50/x
3. Step 3: Cross multiply
   39,730.50x = 57,118.50 × 57,118.50
4. Step 4: Simplify right side
   39,730.50x = 3,262,523,042.25
5. Step 5: Solve for x
   x = 3,262,523,042.25/39,730.50
6. Step 6: Final answer
   x = 82,116.33