Finding the Third Proportional to 16,644 and 19,020

Step by Step Solution

1. Step 1: Write the proportion equation
   16,644 : 19,020 = 19,020 : x
2. Step 2: Convert to fraction form
   16,644/19,020 = 19,020/x
3. Step 3: Cross multiply
   16,644x = 19,020 × 19,020
4. Step 4: Simplify right side
   16,644x = 361,760,400
5. Step 5: Solve for x
   x = 361,760,400/16,644
6. Step 6: Final answer
   x = 21,735.18