Finding the Third Proportional to 11,915.44 and 17,503.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915.44 : 17,503.59 = 17,503.59 : x
2. Step 2: Convert to fraction form
   11,915.44/17,503.59 = 17,503.59/x
3. Step 3: Cross multiply
   11,915.44x = 17,503.59 × 17,503.59
4. Step 4: Simplify right side
   11,915.44x = 306,375,794.17
5. Step 5: Solve for x
   x = 306,375,794.17/11,915.44
6. Step 6: Final answer
   x = 25,712.51