Finding the Third Proportional to 1,086,279 and 1,643,394

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,279 : 1,643,394 = 1,643,394 : x
2. Step 2: Convert to fraction form
   1,086,279/1,643,394 = 1,643,394/x
3. Step 3: Cross multiply
   1,086,279x = 1,643,394 × 1,643,394
4. Step 4: Simplify right side
   1,086,279x = 2,700,743,839,236
5. Step 5: Solve for x
   x = 2,700,743,839,236/1,086,279
6. Step 6: Final answer
   x = 2,486,234.05