Finding the Third Proportional to 17,064 and 18,684

Step by Step Solution

1. Step 1: Write the proportion equation
   17,064 : 18,684 = 18,684 : x
2. Step 2: Convert to fraction form
   17,064/18,684 = 18,684/x
3. Step 3: Cross multiply
   17,064x = 18,684 × 18,684
4. Step 4: Simplify right side
   17,064x = 349,091,856
5. Step 5: Solve for x
   x = 349,091,856/17,064
6. Step 6: Final answer
   x = 20,457.80