Finding the Third Proportional to 17,188 and 18,964

Step by Step Solution

1. Step 1: Write the proportion equation
   17,188 : 18,964 = 18,964 : x
2. Step 2: Convert to fraction form
   17,188/18,964 = 18,964/x
3. Step 3: Cross multiply
   17,188x = 18,964 × 18,964
4. Step 4: Simplify right side
   17,188x = 359,633,296
5. Step 5: Solve for x
   x = 359,633,296/17,188
6. Step 6: Final answer
   x = 20,923.51