Finding the Third Proportional to 10,991 and 17,474

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991 : 17,474 = 17,474 : x
2. Step 2: Convert to fraction form
   10,991/17,474 = 17,474/x
3. Step 3: Cross multiply
   10,991x = 17,474 × 17,474
4. Step 4: Simplify right side
   10,991x = 305,340,676
5. Step 5: Solve for x
   x = 305,340,676/10,991
6. Step 6: Final answer
   x = 27,780.97