Finding the Third Proportional to 988,574 and 2,158,372

Step by Step Solution

1. Step 1: Write the proportion equation
   988,574 : 2,158,372 = 2,158,372 : x
2. Step 2: Convert to fraction form
   988,574/2,158,372 = 2,158,372/x
3. Step 3: Cross multiply
   988,574x = 2,158,372 × 2,158,372
4. Step 4: Simplify right side
   988,574x = 4,658,569,690,384
5. Step 5: Solve for x
   x = 4,658,569,690,384/988,574
6. Step 6: Final answer
   x = 4,712,413.73