Finding the Third Proportional to 11,236.50 and 20,909.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,236.50 : 20,909.25 = 20,909.25 : x
2. Step 2: Convert to fraction form
   11,236.50/20,909.25 = 20,909.25/x
3. Step 3: Cross multiply
   11,236.50x = 20,909.25 × 20,909.25
4. Step 4: Simplify right side
   11,236.50x = 437,196,735.56
5. Step 5: Solve for x
   x = 437,196,735.56/11,236.50
6. Step 6: Final answer
   x = 38,908.62