Finding the Third Proportional to 2,557,037 and 5,512,591

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,037 : 5,512,591 = 5,512,591 : x
2. Step 2: Convert to fraction form
   2,557,037/5,512,591 = 5,512,591/x
3. Step 3: Cross multiply
   2,557,037x = 5,512,591 × 5,512,591
4. Step 4: Simplify right side
   2,557,037x = 30,388,659,533,281
5. Step 5: Solve for x
   x = 30,388,659,533,281/2,557,037
6. Step 6: Final answer
   x = 11,884,325.31