Finding the Third Proportional to 998,707 and 2,157,028

Step by Step Solution

1. Step 1: Write the proportion equation
   998,707 : 2,157,028 = 2,157,028 : x
2. Step 2: Convert to fraction form
   998,707/2,157,028 = 2,157,028/x
3. Step 3: Cross multiply
   998,707x = 2,157,028 × 2,157,028
4. Step 4: Simplify right side
   998,707x = 4,652,769,792,784
5. Step 5: Solve for x
   x = 4,652,769,792,784/998,707
6. Step 6: Final answer
   x = 4,658,793.61