Finding the Third Proportional to 11,342.81 and 15,868.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,342.81 : 15,868.69 = 15,868.69 : x
2. Step 2: Convert to fraction form
   11,342.81/15,868.69 = 15,868.69/x
3. Step 3: Cross multiply
   11,342.81x = 15,868.69 × 15,868.69
4. Step 4: Simplify right side
   11,342.81x = 251,815,242.97
5. Step 5: Solve for x
   x = 251,815,242.97/11,342.81
6. Step 6: Final answer
   x = 22,200.42