Finding the Third Proportional to 151,021.50 and 328,707

Step by Step Solution

1. Step 1: Write the proportion equation
   151,021.50 : 328,707 = 328,707 : x
2. Step 2: Convert to fraction form
   151,021.50/328,707 = 328,707/x
3. Step 3: Cross multiply
   151,021.50x = 328,707 × 328,707
4. Step 4: Simplify right side
   151,021.50x = 108,048,291,849
5. Step 5: Solve for x
   x = 108,048,291,849/151,021.50
6. Step 6: Final answer
   x = 715,449.73