Finding the Third Proportional to 869,205 and 1,383,078

Step by Step Solution

1. Step 1: Write the proportion equation
   869,205 : 1,383,078 = 1,383,078 : x
2. Step 2: Convert to fraction form
   869,205/1,383,078 = 1,383,078/x
3. Step 3: Cross multiply
   869,205x = 1,383,078 × 1,383,078
4. Step 4: Simplify right side
   869,205x = 1,912,904,754,084
5. Step 5: Solve for x
   x = 1,912,904,754,084/869,205
6. Step 6: Final answer
   x = 2,200,752.13