Finding the Third Proportional to 518,508 and 1,078,400.25

Step by Step Solution

1. Step 1: Write the proportion equation
   518,508 : 1,078,400.25 = 1,078,400.25 : x
2. Step 2: Convert to fraction form
   518,508/1,078,400.25 = 1,078,400.25/x
3. Step 3: Cross multiply
   518,508x = 1,078,400.25 × 1,078,400.25
4. Step 4: Simplify right side
   518,508x = 1,162,947,099,200.06
5. Step 5: Solve for x
   x = 1,162,947,099,200.06/518,508
6. Step 6: Final answer
   x = 2,242,872.05