Finding the Third Proportional to 2,479,792 and 5,257,178

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479,792 : 5,257,178 = 5,257,178 : x
2. Step 2: Convert to fraction form
   2,479,792/5,257,178 = 5,257,178/x
3. Step 3: Cross multiply
   2,479,792x = 5,257,178 × 5,257,178
4. Step 4: Simplify right side
   2,479,792x = 27,637,920,523,684
5. Step 5: Solve for x
   x = 27,637,920,523,684/2,479,792
6. Step 6: Final answer
   x = 11,145,257.56