Finding the Third Proportional to 498,478 and 1,087,180

Step by Step Solution

1. Step 1: Write the proportion equation
   498,478 : 1,087,180 = 1,087,180 : x
2. Step 2: Convert to fraction form
   498,478/1,087,180 = 1,087,180/x
3. Step 3: Cross multiply
   498,478x = 1,087,180 × 1,087,180
4. Step 4: Simplify right side
   498,478x = 1,181,960,352,400
5. Step 5: Solve for x
   x = 1,181,960,352,400/498,478
6. Step 6: Final answer
   x = 2,371,138.45