Finding the Third Proportional to 2,697,638 and 5,777,872

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697,638 : 5,777,872 = 5,777,872 : x
2. Step 2: Convert to fraction form
   2,697,638/5,777,872 = 5,777,872/x
3. Step 3: Cross multiply
   2,697,638x = 5,777,872 × 5,777,872
4. Step 4: Simplify right side
   2,697,638x = 33,383,804,848,384
5. Step 5: Solve for x
   x = 33,383,804,848,384/2,697,638
6. Step 6: Final answer
   x = 12,375,198.17