Finding the Third Proportional to 3,565.50 and 7,131

Step by Step Solution

1. Step 1: Write the proportion equation
   3,565.50 : 7,131 = 7,131 : x
2. Step 2: Convert to fraction form
   3,565.50/7,131 = 7,131/x
3. Step 3: Cross multiply
   3,565.50x = 7,131 × 7,131
4. Step 4: Simplify right side
   3,565.50x = 50,851,161
5. Step 5: Solve for x
   x = 50,851,161/3,565.50
6. Step 6: Final answer
   x = 14,262