Finding the Third Proportional to 11,581.50 and 15,951

Step by Step Solution

1. Step 1: Write the proportion equation
   11,581.50 : 15,951 = 15,951 : x
2. Step 2: Convert to fraction form
   11,581.50/15,951 = 15,951/x
3. Step 3: Cross multiply
   11,581.50x = 15,951 × 15,951
4. Step 4: Simplify right side
   11,581.50x = 254,434,401
5. Step 5: Solve for x
   x = 254,434,401/11,581.50
6. Step 6: Final answer
   x = 21,969.04