Finding the Third Proportional to 1,086,293 and 1,643,418

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,293 : 1,643,418 = 1,643,418 : x
2. Step 2: Convert to fraction form
   1,086,293/1,643,418 = 1,643,418/x
3. Step 3: Cross multiply
   1,086,293x = 1,643,418 × 1,643,418
4. Step 4: Simplify right side
   1,086,293x = 2,700,822,722,724
5. Step 5: Solve for x
   x = 2,700,822,722,724/1,086,293
6. Step 6: Final answer
   x = 2,486,274.63