Finding the Third Proportional to 1,384,911 and 2,086,479

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384,911 : 2,086,479 = 2,086,479 : x
2. Step 2: Convert to fraction form
   1,384,911/2,086,479 = 2,086,479/x
3. Step 3: Cross multiply
   1,384,911x = 2,086,479 × 2,086,479
4. Step 4: Simplify right side
   1,384,911x = 4,353,394,617,441
5. Step 5: Solve for x
   x = 4,353,394,617,441/1,384,911
6. Step 6: Final answer
   x = 3,143,447.21