Finding the Third Proportional to 2,479,816 and 5,257,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,816 : 5,257,216 = 5,257,216 : x
2. Step 2: Convert to fraction form
   2,479,816/5,257,216 = 5,257,216/x
3. Step 3: Cross multiply
   2,479,816x = 5,257,216 × 5,257,216
4. Step 4: Simplify right side
   2,479,816x = 27,638,320,070,656
5. Step 5: Solve for x
   x = 27,638,320,070,656/2,479,816
6. Step 6: Final answer
   x = 11,145,310.81