Finding the Third Proportional to 151,238.50 and 329,148.25

Step by Step Solution

1. Step 1: Write the proportion equation
   151,238.50 : 329,148.25 = 329,148.25 : x
2. Step 2: Convert to fraction form
   151,238.50/329,148.25 = 329,148.25/x
3. Step 3: Cross multiply
   151,238.50x = 329,148.25 × 329,148.25
4. Step 4: Simplify right side
   151,238.50x = 108,338,567,906.60
5. Step 5: Solve for x
   x = 108,338,567,906.60/151,238.50
6. Step 6: Final answer
   x = 716,342.54