Finding the Third Proportional to 2,318.50 and 3,590.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.50 : 3,590.50 = 3,590.50 : x
2. Step 2: Convert to fraction form
   2,318.50/3,590.50 = 3,590.50/x
3. Step 3: Cross multiply
   2,318.50x = 3,590.50 × 3,590.50
4. Step 4: Simplify right side
   2,318.50x = 12,891,690.25
5. Step 5: Solve for x
   x = 12,891,690.25/2,318.50
6. Step 6: Final answer
   x = 5,560.36