Finding the Third Proportional to 359,600 and 517,992

Step by Step Solution

1. Step 1: Write the proportion equation
   359,600 : 517,992 = 517,992 : x
2. Step 2: Convert to fraction form
   359,600/517,992 = 517,992/x
3. Step 3: Cross multiply
   359,600x = 517,992 × 517,992
4. Step 4: Simplify right side
   359,600x = 268,315,712,064
5. Step 5: Solve for x
   x = 268,315,712,064/359,600
6. Step 6: Final answer
   x = 746,150.48