Finding the Third Proportional to 328,873.50 and 491,988

Step by Step Solution

1. Step 1: Write the proportion equation
   328,873.50 : 491,988 = 491,988 : x
2. Step 2: Convert to fraction form
   328,873.50/491,988 = 491,988/x
3. Step 3: Cross multiply
   328,873.50x = 491,988 × 491,988
4. Step 4: Simplify right side
   328,873.50x = 242,052,192,144
5. Step 5: Solve for x
   x = 242,052,192,144/328,873.50
6. Step 6: Final answer
   x = 736,003.94