Finding the Third Proportional to 359,612 and 518,010

Step by Step Solution

1. Step 1: Write the proportion equation
   359,612 : 518,010 = 518,010 : x
2. Step 2: Convert to fraction form
   359,612/518,010 = 518,010/x
3. Step 3: Cross multiply
   359,612x = 518,010 × 518,010
4. Step 4: Simplify right side
   359,612x = 268,334,360,100
5. Step 5: Solve for x
   x = 268,334,360,100/359,612
6. Step 6: Final answer
   x = 746,177.44