Finding the Third Proportional to 11,256.75 and 20,009.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,256.75 : 20,009.25 = 20,009.25 : x
2. Step 2: Convert to fraction form
   11,256.75/20,009.25 = 20,009.25/x
3. Step 3: Cross multiply
   11,256.75x = 20,009.25 × 20,009.25
4. Step 4: Simplify right side
   11,256.75x = 400,370,085.56
5. Step 5: Solve for x
   x = 400,370,085.56/11,256.75
6. Step 6: Final answer
   x = 35,567.11