Finding the Third Proportional to 984,878 and 2,116,885

Step by Step Solution

1. Step 1: Write the proportion equation
   984,878 : 2,116,885 = 2,116,885 : x
2. Step 2: Convert to fraction form
   984,878/2,116,885 = 2,116,885/x
3. Step 3: Cross multiply
   984,878x = 2,116,885 × 2,116,885
4. Step 4: Simplify right side
   984,878x = 4,481,202,103,225
5. Step 5: Solve for x
   x = 4,481,202,103,225/984,878
6. Step 6: Final answer
   x = 4,550,007.31