Finding the Third Proportional to 984,939 and 2,156,720

Step by Step Solution

1. Step 1: Write the proportion equation
   984,939 : 2,156,720 = 2,156,720 : x
2. Step 2: Convert to fraction form
   984,939/2,156,720 = 2,156,720/x
3. Step 3: Cross multiply
   984,939x = 2,156,720 × 2,156,720
4. Step 4: Simplify right side
   984,939x = 4,651,441,158,400
5. Step 5: Solve for x
   x = 4,651,441,158,400/984,939
6. Step 6: Final answer
   x = 4,722,567.75