Finding the Third Proportional to 36,520.88 and 54,781.31

Step by Step Solution

1. Step 1: Write the proportion equation
   36,520.88 : 54,781.31 = 54,781.31 : x
2. Step 2: Convert to fraction form
   36,520.88/54,781.31 = 54,781.31/x
3. Step 3: Cross multiply
   36,520.88x = 54,781.31 × 54,781.31
4. Step 4: Simplify right side
   36,520.88x = 3,000,992,199.22
5. Step 5: Solve for x
   x = 3,000,992,199.22/36,520.88
6. Step 6: Final answer
   x = 82,171.97