Finding the Third Proportional to 988,674 and 2,158,572

Step by Step Solution

1. Step 1: Write the proportion equation
   988,674 : 2,158,572 = 2,158,572 : x
2. Step 2: Convert to fraction form
   988,674/2,158,572 = 2,158,572/x
3. Step 3: Cross multiply
   988,674x = 2,158,572 × 2,158,572
4. Step 4: Simplify right side
   988,674x = 4,659,433,079,184
5. Step 5: Solve for x
   x = 4,659,433,079,184/988,674
6. Step 6: Final answer
   x = 4,712,810.37