Finding the Third Proportional to 72,708 and 153,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,708 : 153,799.50 = 153,799.50 : x
2. Step 2: Convert to fraction form
   72,708/153,799.50 = 153,799.50/x
3. Step 3: Cross multiply
   72,708x = 153,799.50 × 153,799.50
4. Step 4: Simplify right side
   72,708x = 23,654,286,200.25
5. Step 5: Solve for x
   x = 23,654,286,200.25/72,708
6. Step 6: Final answer
   x = 325,332.65