Finding the Third Proportional to 1,266,828 and 2,638,493

Step by Step Solution

1. Step 1: Write the proportion equation
   1,266,828 : 2,638,493 = 2,638,493 : x
2. Step 2: Convert to fraction form
   1,266,828/2,638,493 = 2,638,493/x
3. Step 3: Cross multiply
   1,266,828x = 2,638,493 × 2,638,493
4. Step 4: Simplify right side
   1,266,828x = 6,961,645,311,049
5. Step 5: Solve for x
   x = 6,961,645,311,049/1,266,828
6. Step 6: Final answer
   x = 5,495,335.84