Finding the Third Proportional to 9,031.50 and 13,721.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,031.50 : 13,721.25 = 13,721.25 : x
2. Step 2: Convert to fraction form
   9,031.50/13,721.25 = 13,721.25/x
3. Step 3: Cross multiply
   9,031.50x = 13,721.25 × 13,721.25
4. Step 4: Simplify right side
   9,031.50x = 188,272,701.56
5. Step 5: Solve for x
   x = 188,272,701.56/9,031.50
6. Step 6: Final answer
   x = 20,846.23