Finding the Third Proportional to 1,338,880 and 2,039,691

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,880 : 2,039,691 = 2,039,691 : x
2. Step 2: Convert to fraction form
   1,338,880/2,039,691 = 2,039,691/x
3. Step 3: Cross multiply
   1,338,880x = 2,039,691 × 2,039,691
4. Step 4: Simplify right side
   1,338,880x = 4,160,339,375,481
5. Step 5: Solve for x
   x = 4,160,339,375,481/1,338,880
6. Step 6: Final answer
   x = 3,107,328.05