Finding the Third Proportional to 4,429.69 and 8,745.47

Step by Step Solution

1. Step 1: Write the proportion equation
   4,429.69 : 8,745.47 = 8,745.47 : x
2. Step 2: Convert to fraction form
   4,429.69/8,745.47 = 8,745.47/x
3. Step 3: Cross multiply
   4,429.69x = 8,745.47 × 8,745.47
4. Step 4: Simplify right side
   4,429.69x = 76,483,223.66
5. Step 5: Solve for x
   x = 76,483,223.66/4,429.69
6. Step 6: Final answer
   x = 17,266.05