Finding the Third Proportional to 4,396.78 and 8,074.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,396.78 : 8,074.69 = 8,074.69 : x
2. Step 2: Convert to fraction form
   4,396.78/8,074.69 = 8,074.69/x
3. Step 3: Cross multiply
   4,396.78x = 8,074.69 × 8,074.69
4. Step 4: Simplify right side
   4,396.78x = 65,200,578.22
5. Step 5: Solve for x
   x = 65,200,578.22/4,396.78
6. Step 6: Final answer
   x = 14,829.16