Finding the Third Proportional to 2,479,840 and 5,257,312

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,840 : 5,257,312 = 5,257,312 : x
2. Step 2: Convert to fraction form
   2,479,840/5,257,312 = 5,257,312/x
3. Step 3: Cross multiply
   2,479,840x = 5,257,312 × 5,257,312
4. Step 4: Simplify right side
   2,479,840x = 27,639,329,465,344
5. Step 5: Solve for x
   x = 27,639,329,465,344/2,479,840
6. Step 6: Final answer
   x = 11,145,609.99