Finding the Third Proportional to 5,392 and 12,388

Step by Step Solution

1. Step 1: Write the proportion equation
   5,392 : 12,388 = 12,388 : x
2. Step 2: Convert to fraction form
   5,392/12,388 = 12,388/x
3. Step 3: Cross multiply
   5,392x = 12,388 × 12,388
4. Step 4: Simplify right side
   5,392x = 153,462,544
5. Step 5: Solve for x
   x = 153,462,544/5,392
6. Step 6: Final answer
   x = 28,461.15