Finding the Third Proportional to 2,018.50 and 4,259

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.50 : 4,259 = 4,259 : x
2. Step 2: Convert to fraction form
   2,018.50/4,259 = 4,259/x
3. Step 3: Cross multiply
   2,018.50x = 4,259 × 4,259
4. Step 4: Simplify right side
   2,018.50x = 18,139,081
5. Step 5: Solve for x
   x = 18,139,081/2,018.50
6. Step 6: Final answer
   x = 8,986.42