Finding the Third Proportional to 39,966.75 and 83,760.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,966.75 : 83,760.75 = 83,760.75 : x
2. Step 2: Convert to fraction form
   39,966.75/83,760.75 = 83,760.75/x
3. Step 3: Cross multiply
   39,966.75x = 83,760.75 × 83,760.75
4. Step 4: Simplify right side
   39,966.75x = 7,015,863,240.56
5. Step 5: Solve for x
   x = 7,015,863,240.56/39,966.75
6. Step 6: Final answer
   x = 175,542.50