Finding the Third Proportional to 4,009.50 and 4,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,009.50 : 4,279.50 = 4,279.50 : x
2. Step 2: Convert to fraction form
   4,009.50/4,279.50 = 4,279.50/x
3. Step 3: Cross multiply
   4,009.50x = 4,279.50 × 4,279.50
4. Step 4: Simplify right side
   4,009.50x = 18,314,120.25
5. Step 5: Solve for x
   x = 18,314,120.25/4,009.50
6. Step 6: Final answer
   x = 4,567.68