Finding the Third Proportional to 8,388 and 13,000

Step by Step Solution

1. Step 1: Write the proportion equation
   8,388 : 13,000 = 13,000 : x
2. Step 2: Convert to fraction form
   8,388/13,000 = 13,000/x
3. Step 3: Cross multiply
   8,388x = 13,000 × 13,000
4. Step 4: Simplify right side
   8,388x = 169,000,000
5. Step 5: Solve for x
   x = 169,000,000/8,388
6. Step 6: Final answer
   x = 20,147.83