Finding the Third Proportional to 16,684 and 18,964

Step by Step Solution

1. Step 1: Write the proportion equation
   16,684 : 18,964 = 18,964 : x
2. Step 2: Convert to fraction form
   16,684/18,964 = 18,964/x
3. Step 3: Cross multiply
   16,684x = 18,964 × 18,964
4. Step 4: Simplify right side
   16,684x = 359,633,296
5. Step 5: Solve for x
   x = 359,633,296/16,684
6. Step 6: Final answer
   x = 21,555.58