Finding the Third Proportional to 39,641.91 and 54,359.86

Step by Step Solution

1. Step 1: Write the proportion equation
   39,641.91 : 54,359.86 = 54,359.86 : x
2. Step 2: Convert to fraction form
   39,641.91/54,359.86 = 54,359.86/x
3. Step 3: Cross multiply
   39,641.91x = 54,359.86 × 54,359.86
4. Step 4: Simplify right side
   39,641.91x = 2,954,994,311.27
5. Step 5: Solve for x
   x = 2,954,994,311.27/39,641.91
6. Step 6: Final answer
   x = 74,542.19