Finding the Third Proportional to 15,401.25 and 17,021.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,401.25 : 17,021.25 = 17,021.25 : x
2. Step 2: Convert to fraction form
   15,401.25/17,021.25 = 17,021.25/x
3. Step 3: Cross multiply
   15,401.25x = 17,021.25 × 17,021.25
4. Step 4: Simplify right side
   15,401.25x = 289,722,951.56
5. Step 5: Solve for x
   x = 289,722,951.56/15,401.25
6. Step 6: Final answer
   x = 18,811.65