Finding the Third Proportional to 8,648 and 20,468

Step by Step Solution

1. Step 1: Write the proportion equation
   8,648 : 20,468 = 20,468 : x
2. Step 2: Convert to fraction form
   8,648/20,468 = 20,468/x
3. Step 3: Cross multiply
   8,648x = 20,468 × 20,468
4. Step 4: Simplify right side
   8,648x = 418,939,024
5. Step 5: Solve for x
   x = 418,939,024/8,648
6. Step 6: Final answer
   x = 48,443.46