Finding the Third Proportional to 11,917.88 and 17,507.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,917.88 : 17,507.25 = 17,507.25 : x
2. Step 2: Convert to fraction form
   11,917.88/17,507.25 = 17,507.25/x
3. Step 3: Cross multiply
   11,917.88x = 17,507.25 × 17,507.25
4. Step 4: Simplify right side
   11,917.88x = 306,503,802.56
5. Step 5: Solve for x
   x = 306,503,802.56/11,917.88
6. Step 6: Final answer
   x = 25,717.99