Finding the Third Proportional to 3,745.62 and 8,131.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,745.62 : 8,131.96 = 8,131.96 : x
2. Step 2: Convert to fraction form
   3,745.62/8,131.96 = 8,131.96/x
3. Step 3: Cross multiply
   3,745.62x = 8,131.96 × 8,131.96
4. Step 4: Simplify right side
   3,745.62x = 66,128,725.16
5. Step 5: Solve for x
   x = 66,128,725.16/3,745.62
6. Step 6: Final answer
   x = 17,654.96