Finding the Third Proportional to 17,160 and 18,456

Step by Step Solution

1. Step 1: Write the proportion equation
   17,160 : 18,456 = 18,456 : x
2. Step 2: Convert to fraction form
   17,160/18,456 = 18,456/x
3. Step 3: Cross multiply
   17,160x = 18,456 × 18,456
4. Step 4: Simplify right side
   17,160x = 340,623,936
5. Step 5: Solve for x
   x = 340,623,936/17,160
6. Step 6: Final answer
   x = 19,849.88