Finding the Third Proportional to 9,345.75 and 13,745.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345.75 : 13,745.25 = 13,745.25 : x
2. Step 2: Convert to fraction form
   9,345.75/13,745.25 = 13,745.25/x
3. Step 3: Cross multiply
   9,345.75x = 13,745.25 × 13,745.25
4. Step 4: Simplify right side
   9,345.75x = 188,931,897.56
5. Step 5: Solve for x
   x = 188,931,897.56/9,345.75
6. Step 6: Final answer
   x = 20,215.81