Finding the Third Proportional to 2,379.75 and 3,158.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.75 : 3,158.25 = 3,158.25 : x
2. Step 2: Convert to fraction form
   2,379.75/3,158.25 = 3,158.25/x
3. Step 3: Cross multiply
   2,379.75x = 3,158.25 × 3,158.25
4. Step 4: Simplify right side
   2,379.75x = 9,974,543.06
5. Step 5: Solve for x
   x = 9,974,543.06/2,379.75
6. Step 6: Final answer
   x = 4,191.42