Finding the Third Proportional to 39,666.50 and 83,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,666.50 : 83,423.50 = 83,423.50 : x
2. Step 2: Convert to fraction form
   39,666.50/83,423.50 = 83,423.50/x
3. Step 3: Cross multiply
   39,666.50x = 83,423.50 × 83,423.50
4. Step 4: Simplify right side
   39,666.50x = 6,959,480,352.25
5. Step 5: Solve for x
   x = 6,959,480,352.25/39,666.50
6. Step 6: Final answer
   x = 175,449.82