Finding the Third Proportional to 2,491,821 and 5,455,386

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491,821 : 5,455,386 = 5,455,386 : x
2. Step 2: Convert to fraction form
   2,491,821/5,455,386 = 5,455,386/x
3. Step 3: Cross multiply
   2,491,821x = 5,455,386 × 5,455,386
4. Step 4: Simplify right side
   2,491,821x = 29,761,236,408,996
5. Step 5: Solve for x
   x = 29,761,236,408,996/2,491,821
6. Step 6: Final answer
   x = 11,943,569.14