Finding the Third Proportional to 988,571 and 2,157,570

Step by Step Solution

1. Step 1: Write the proportion equation
   988,571 : 2,157,570 = 2,157,570 : x
2. Step 2: Convert to fraction form
   988,571/2,157,570 = 2,157,570/x
3. Step 3: Cross multiply
   988,571x = 2,157,570 × 2,157,570
4. Step 4: Simplify right side
   988,571x = 4,655,108,304,900
5. Step 5: Solve for x
   x = 4,655,108,304,900/988,571
6. Step 6: Final answer
   x = 4,708,926.63