Finding the Third Proportional to 11,367.84 and 15,435.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,367.84 : 15,435.56 = 15,435.56 : x
2. Step 2: Convert to fraction form
   11,367.84/15,435.56 = 15,435.56/x
3. Step 3: Cross multiply
   11,367.84x = 15,435.56 × 15,435.56
4. Step 4: Simplify right side
   11,367.84x = 238,256,589.69
5. Step 5: Solve for x
   x = 238,256,589.69/11,367.84
6. Step 6: Final answer
   x = 20,958.82