Finding the Third Proportional to 10,661 and 17,031

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661 : 17,031 = 17,031 : x
2. Step 2: Convert to fraction form
   10,661/17,031 = 17,031/x
3. Step 3: Cross multiply
   10,661x = 17,031 × 17,031
4. Step 4: Simplify right side
   10,661x = 290,054,961
5. Step 5: Solve for x
   x = 290,054,961/10,661
6. Step 6: Final answer
   x = 27,207.11