Finding the Third Proportional to 13,530 and 17,109

Step by Step Solution

1. Step 1: Write the proportion equation
   13,530 : 17,109 = 17,109 : x
2. Step 2: Convert to fraction form
   13,530/17,109 = 17,109/x
3. Step 3: Cross multiply
   13,530x = 17,109 × 17,109
4. Step 4: Simplify right side
   13,530x = 292,717,881
5. Step 5: Solve for x
   x = 292,717,881/13,530
6. Step 6: Final answer
   x = 21,634.73