Finding the Third Proportional to 16,276 and 18,388

Step by Step Solution

1. Step 1: Write the proportion equation
   16,276 : 18,388 = 18,388 : x
2. Step 2: Convert to fraction form
   16,276/18,388 = 18,388/x
3. Step 3: Cross multiply
   16,276x = 18,388 × 18,388
4. Step 4: Simplify right side
   16,276x = 338,118,544
5. Step 5: Solve for x
   x = 338,118,544/16,276
6. Step 6: Final answer
   x = 20,774.06