Finding the Third Proportional to 498,555 and 1,087,317

Step by Step Solution

1. Step 1: Write the proportion equation
   498,555 : 1,087,317 = 1,087,317 : x
2. Step 2: Convert to fraction form
   498,555/1,087,317 = 1,087,317/x
3. Step 3: Cross multiply
   498,555x = 1,087,317 × 1,087,317
4. Step 4: Simplify right side
   498,555x = 1,182,258,258,489
5. Step 5: Solve for x
   x = 1,182,258,258,489/498,555
6. Step 6: Final answer
   x = 2,371,369.78