Finding the Third Proportional to 328,929 and 492,055

Step by Step Solution

1. Step 1: Write the proportion equation
   328,929 : 492,055 = 492,055 : x
2. Step 2: Convert to fraction form
   328,929/492,055 = 492,055/x
3. Step 3: Cross multiply
   328,929x = 492,055 × 492,055
4. Step 4: Simplify right side
   328,929x = 242,118,123,025
5. Step 5: Solve for x
   x = 242,118,123,025/328,929
6. Step 6: Final answer
   x = 736,080.20