Finding the Third Proportional to 17,088 and 18,864

Step by Step Solution

1. Step 1: Write the proportion equation
   17,088 : 18,864 = 18,864 : x
2. Step 2: Convert to fraction form
   17,088/18,864 = 18,864/x
3. Step 3: Cross multiply
   17,088x = 18,864 × 18,864
4. Step 4: Simplify right side
   17,088x = 355,850,496
5. Step 5: Solve for x
   x = 355,850,496/17,088
6. Step 6: Final answer
   x = 20,824.58