Finding the Third Proportional to 11,125.75 and 17,221.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,125.75 : 17,221.25 = 17,221.25 : x
2. Step 2: Convert to fraction form
   11,125.75/17,221.25 = 17,221.25/x
3. Step 3: Cross multiply
   11,125.75x = 17,221.25 × 17,221.25
4. Step 4: Simplify right side
   11,125.75x = 296,571,451.56
5. Step 5: Solve for x
   x = 296,571,451.56/11,125.75
6. Step 6: Final answer
   x = 26,656.31