Finding the Third Proportional to 16,188 and 21,294

Step by Step Solution

1. Step 1: Write the proportion equation
   16,188 : 21,294 = 21,294 : x
2. Step 2: Convert to fraction form
   16,188/21,294 = 21,294/x
3. Step 3: Cross multiply
   16,188x = 21,294 × 21,294
4. Step 4: Simplify right side
   16,188x = 453,434,436
5. Step 5: Solve for x
   x = 453,434,436/16,188
6. Step 6: Final answer
   x = 28,010.53