Finding the Third Proportional to 1,098,380 and 1,643,589

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,380 : 1,643,589 = 1,643,589 : x
2. Step 2: Convert to fraction form
   1,098,380/1,643,589 = 1,643,589/x
3. Step 3: Cross multiply
   1,098,380x = 1,643,589 × 1,643,589
4. Step 4: Simplify right side
   1,098,380x = 2,701,384,800,921
5. Step 5: Solve for x
   x = 2,701,384,800,921/1,098,380
6. Step 6: Final answer
   x = 2,459,426.43