Finding the Third Proportional to 13,188 and 16,020

Step by Step Solution

1. Step 1: Write the proportion equation
   13,188 : 16,020 = 16,020 : x
2. Step 2: Convert to fraction form
   13,188/16,020 = 16,020/x
3. Step 3: Cross multiply
   13,188x = 16,020 × 16,020
4. Step 4: Simplify right side
   13,188x = 256,640,400
5. Step 5: Solve for x
   x = 256,640,400/13,188
6. Step 6: Final answer
   x = 19,460.15