Finding the Third Proportional to 7,357.50 and 19,959.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,357.50 : 19,959.75 = 19,959.75 : x
2. Step 2: Convert to fraction form
   7,357.50/19,959.75 = 19,959.75/x
3. Step 3: Cross multiply
   7,357.50x = 19,959.75 × 19,959.75
4. Step 4: Simplify right side
   7,357.50x = 398,391,620.06
5. Step 5: Solve for x
   x = 398,391,620.06/7,357.50
6. Step 6: Final answer
   x = 54,147.69