Finding the Third Proportional to 2,479,788 and 5,257,170

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,788 : 5,257,170 = 5,257,170 : x
2. Step 2: Convert to fraction form
   2,479,788/5,257,170 = 5,257,170/x
3. Step 3: Cross multiply
   2,479,788x = 5,257,170 × 5,257,170
4. Step 4: Simplify right side
   2,479,788x = 27,637,836,408,900
5. Step 5: Solve for x
   x = 27,637,836,408,900/2,479,788
6. Step 6: Final answer
   x = 11,145,241.61