Finding the Third Proportional to 328,877 and 491,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   328,877 : 491,993.50 = 491,993.50 : x
2. Step 2: Convert to fraction form
   328,877/491,993.50 = 491,993.50/x
3. Step 3: Cross multiply
   328,877x = 491,993.50 × 491,993.50
4. Step 4: Simplify right side
   328,877x = 242,057,604,042.25
5. Step 5: Solve for x
   x = 242,057,604,042.25/328,877
6. Step 6: Final answer
   x = 736,012.56