Finding the Third Proportional to 876,432 and 1,320,418

Step by Step Solution

1. Step 1: Write the proportion equation
   876,432 : 1,320,418 = 1,320,418 : x
2. Step 2: Convert to fraction form
   876,432/1,320,418 = 1,320,418/x
3. Step 3: Cross multiply
   876,432x = 1,320,418 × 1,320,418
4. Step 4: Simplify right side
   876,432x = 1,743,503,694,724
5. Step 5: Solve for x
   x = 1,743,503,694,724/876,432
6. Step 6: Final answer
   x = 1,989,319.99