Finding the Third Proportional to 361,404 and 482,976

Step by Step Solution

1. Step 1: Write the proportion equation
   361,404 : 482,976 = 482,976 : x
2. Step 2: Convert to fraction form
   361,404/482,976 = 482,976/x
3. Step 3: Cross multiply
   361,404x = 482,976 × 482,976
4. Step 4: Simplify right side
   361,404x = 233,265,816,576
5. Step 5: Solve for x
   x = 233,265,816,576/361,404
6. Step 6: Final answer
   x = 645,443.37