Finding the Third Proportional to 39,642.75 and 57,682.13

Step by Step Solution

1. Step 1: Write the proportion equation
   39,642.75 : 57,682.13 = 57,682.13 : x
2. Step 2: Convert to fraction form
   39,642.75/57,682.13 = 57,682.13/x
3. Step 3: Cross multiply
   39,642.75x = 57,682.13 × 57,682.13
4. Step 4: Simplify right side
   39,642.75x = 3,327,227,544.52
5. Step 5: Solve for x
   x = 3,327,227,544.52/39,642.75
6. Step 6: Final answer
   x = 83,930.29