Finding the Third Proportional to 2,325.80 and 5,485.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,325.80 : 5,485.85 = 5,485.85 : x
2. Step 2: Convert to fraction form
   2,325.80/5,485.85 = 5,485.85/x
3. Step 3: Cross multiply
   2,325.80x = 5,485.85 × 5,485.85
4. Step 4: Simplify right side
   2,325.80x = 30,094,567.37
5. Step 5: Solve for x
   x = 30,094,567.37/2,325.80
6. Step 6: Final answer
   x = 12,939.47