Finding the Third Proportional to 3,531.81 and 7,691.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531.81 : 7,691.52 = 7,691.52 : x
2. Step 2: Convert to fraction form
   3,531.81/7,691.52 = 7,691.52/x
3. Step 3: Cross multiply
   3,531.81x = 7,691.52 × 7,691.52
4. Step 4: Simplify right side
   3,531.81x = 59,159,472.70
5. Step 5: Solve for x
   x = 59,159,472.70/3,531.81
6. Step 6: Final answer
   x = 16,750.49