Finding the Third Proportional to 11,335.50 and 21,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,335.50 : 21,241.50 = 21,241.50 : x
2. Step 2: Convert to fraction form
   11,335.50/21,241.50 = 21,241.50/x
3. Step 3: Cross multiply
   11,335.50x = 21,241.50 × 21,241.50
4. Step 4: Simplify right side
   11,335.50x = 451,201,322.25
5. Step 5: Solve for x
   x = 451,201,322.25/11,335.50
6. Step 6: Final answer
   x = 39,804.27