Finding the Third Proportional to 71,321.50 and 152,763.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,321.50 : 152,763.50 = 152,763.50 : x
2. Step 2: Convert to fraction form
   71,321.50/152,763.50 = 152,763.50/x
3. Step 3: Cross multiply
   71,321.50x = 152,763.50 × 152,763.50
4. Step 4: Simplify right side
   71,321.50x = 23,336,686,932.25
5. Step 5: Solve for x
   x = 23,336,686,932.25/71,321.50
6. Step 6: Final answer
   x = 327,204.10