Finding the Third Proportional to 1,958.50 and 4,287.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,958.50 : 4,287.75 = 4,287.75 : x
2. Step 2: Convert to fraction form
   1,958.50/4,287.75 = 4,287.75/x
3. Step 3: Cross multiply
   1,958.50x = 4,287.75 × 4,287.75
4. Step 4: Simplify right side
   1,958.50x = 18,384,800.06
5. Step 5: Solve for x
   x = 18,384,800.06/1,958.50
6. Step 6: Final answer
   x = 9,387.18