Finding the Third Proportional to 1,338,676 and 2,039,387

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,676 : 2,039,387 = 2,039,387 : x
2. Step 2: Convert to fraction form
   1,338,676/2,039,387 = 2,039,387/x
3. Step 3: Cross multiply
   1,338,676x = 2,039,387 × 2,039,387
4. Step 4: Simplify right side
   1,338,676x = 4,159,099,335,769
5. Step 5: Solve for x
   x = 4,159,099,335,769/1,338,676
6. Step 6: Final answer
   x = 3,106,875.25