Finding the Third Proportional to 17,106 and 18,402

Step by Step Solution

1. Step 1: Write the proportion equation
   17,106 : 18,402 = 18,402 : x
2. Step 2: Convert to fraction form
   17,106/18,402 = 18,402/x
3. Step 3: Cross multiply
   17,106x = 18,402 × 18,402
4. Step 4: Simplify right side
   17,106x = 338,633,604
5. Step 5: Solve for x
   x = 338,633,604/17,106
6. Step 6: Final answer
   x = 19,796.19