Finding the Third Proportional to 39,865.50 and 54,165.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,865.50 : 54,165.38 = 54,165.38 : x
2. Step 2: Convert to fraction form
   39,865.50/54,165.38 = 54,165.38/x
3. Step 3: Cross multiply
   39,865.50x = 54,165.38 × 54,165.38
4. Step 4: Simplify right side
   39,865.50x = 2,933,887,848.89
5. Step 5: Solve for x
   x = 2,933,887,848.89/39,865.50
6. Step 6: Final answer
   x = 73,594.66