Finding the Third Proportional to 328,417.50 and 494,976

Step by Step Solution

1. Step 1: Write the proportion equation
   328,417.50 : 494,976 = 494,976 : x
2. Step 2: Convert to fraction form
   328,417.50/494,976 = 494,976/x
3. Step 3: Cross multiply
   328,417.50x = 494,976 × 494,976
4. Step 4: Simplify right side
   328,417.50x = 245,001,240,576
5. Step 5: Solve for x
   x = 245,001,240,576/328,417.50
6. Step 6: Final answer
   x = 746,005.44