Finding the Third Proportional to 489,414 and 1,083,642

Step by Step Solution

1. Step 1: Write the proportion equation
   489,414 : 1,083,642 = 1,083,642 : x
2. Step 2: Convert to fraction form
   489,414/1,083,642 = 1,083,642/x
3. Step 3: Cross multiply
   489,414x = 1,083,642 × 1,083,642
4. Step 4: Simplify right side
   489,414x = 1,174,279,984,164
5. Step 5: Solve for x
   x = 1,174,279,984,164/489,414
6. Step 6: Final answer
   x = 2,399,359.20