Finding the Third Proportional to 152,776.50 and 328,959

Step by Step Solution

1. Step 1: Write the proportion equation
   152,776.50 : 328,959 = 328,959 : x
2. Step 2: Convert to fraction form
   152,776.50/328,959 = 328,959/x
3. Step 3: Cross multiply
   152,776.50x = 328,959 × 328,959
4. Step 4: Simplify right side
   152,776.50x = 108,214,023,681
5. Step 5: Solve for x
   x = 108,214,023,681/152,776.50
6. Step 6: Final answer
   x = 708,315.90