Finding the Third Proportional to 11,976 and 17,991

Step by Step Solution

1. Step 1: Write the proportion equation
   11,976 : 17,991 = 17,991 : x
2. Step 2: Convert to fraction form
   11,976/17,991 = 17,991/x
3. Step 3: Cross multiply
   11,976x = 17,991 × 17,991
4. Step 4: Simplify right side
   11,976x = 323,676,081
5. Step 5: Solve for x
   x = 323,676,081/11,976
6. Step 6: Final answer
   x = 27,027.06