Finding the Third Proportional to 5,359.50 and 8,388

Step by Step Solution

1. Step 1: Write the proportion equation
   5,359.50 : 8,388 = 8,388 : x
2. Step 2: Convert to fraction form
   5,359.50/8,388 = 8,388/x
3. Step 3: Cross multiply
   5,359.50x = 8,388 × 8,388
4. Step 4: Simplify right side
   5,359.50x = 70,358,544
5. Step 5: Solve for x
   x = 70,358,544/5,359.50
6. Step 6: Final answer
   x = 13,127.82