Finding the Third Proportional to 39,402.75 and 59,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,402.75 : 59,143.50 = 59,143.50 : x
2. Step 2: Convert to fraction form
   39,402.75/59,143.50 = 59,143.50/x
3. Step 3: Cross multiply
   39,402.75x = 59,143.50 × 59,143.50
4. Step 4: Simplify right side
   39,402.75x = 3,497,953,592.25
5. Step 5: Solve for x
   x = 3,497,953,592.25/39,402.75
6. Step 6: Final answer
   x = 88,774.35