Finding the Third Proportional to 642,114 and 1,383,570

Step by Step Solution

1. Step 1: Write the proportion equation
   642,114 : 1,383,570 = 1,383,570 : x
2. Step 2: Convert to fraction form
   642,114/1,383,570 = 1,383,570/x
3. Step 3: Cross multiply
   642,114x = 1,383,570 × 1,383,570
4. Step 4: Simplify right side
   642,114x = 1,914,265,944,900
5. Step 5: Solve for x
   x = 1,914,265,944,900/642,114
6. Step 6: Final answer
   x = 2,981,193.28