Finding the Third Proportional to 7,601.25 and 12,143.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,601.25 : 12,143.25 = 12,143.25 : x
2. Step 2: Convert to fraction form
   7,601.25/12,143.25 = 12,143.25/x
3. Step 3: Cross multiply
   7,601.25x = 12,143.25 × 12,143.25
4. Step 4: Simplify right side
   7,601.25x = 147,458,520.56
5. Step 5: Solve for x
   x = 147,458,520.56/7,601.25
6. Step 6: Final answer
   x = 19,399.25