Finding the Third Proportional to 10,256 and 14,665.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256 : 14,665.75 = 14,665.75 : x
2. Step 2: Convert to fraction form
   10,256/14,665.75 = 14,665.75/x
3. Step 3: Cross multiply
   10,256x = 14,665.75 × 14,665.75
4. Step 4: Simplify right side
   10,256x = 215,084,223.06
5. Step 5: Solve for x
   x = 215,084,223.06/10,256
6. Step 6: Final answer
   x = 20,971.55