Finding the Third Proportional to 988,693 and 2,158,610

Step by Step Solution

1. Step 1: Write the proportion equation
   988,693 : 2,158,610 = 2,158,610 : x
2. Step 2: Convert to fraction form
   988,693/2,158,610 = 2,158,610/x
3. Step 3: Cross multiply
   988,693x = 2,158,610 × 2,158,610
4. Step 4: Simplify right side
   988,693x = 4,659,597,132,100
5. Step 5: Solve for x
   x = 4,659,597,132,100/988,693
6. Step 6: Final answer
   x = 4,712,885.73