Finding the Third Proportional to 10,515 and 16,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,515 : 16,279.50 = 16,279.50 : x
2. Step 2: Convert to fraction form
   10,515/16,279.50 = 16,279.50/x
3. Step 3: Cross multiply
   10,515x = 16,279.50 × 16,279.50
4. Step 4: Simplify right side
   10,515x = 265,022,120.25
5. Step 5: Solve for x
   x = 265,022,120.25/10,515
6. Step 6: Final answer
   x = 25,204.20