Finding the Third Proportional to 8,661 and 13,056

Step by Step Solution

1. Step 1: Write the proportion equation
   8,661 : 13,056 = 13,056 : x
2. Step 2: Convert to fraction form
   8,661/13,056 = 13,056/x
3. Step 3: Cross multiply
   8,661x = 13,056 × 13,056
4. Step 4: Simplify right side
   8,661x = 170,459,136
5. Step 5: Solve for x
   x = 170,459,136/8,661
6. Step 6: Final answer
   x = 19,681.23