Finding the Third Proportional to 962.72 and 1,993.78

Step by Step Solution

1. Step 1: Write the proportion equation
   962.72 : 1,993.78 = 1,993.78 : x
2. Step 2: Convert to fraction form
   962.72/1,993.78 = 1,993.78/x
3. Step 3: Cross multiply
   962.72x = 1,993.78 × 1,993.78
4. Step 4: Simplify right side
   962.72x = 3,975,163.67
5. Step 5: Solve for x
   x = 3,975,163.67/962.72
6. Step 6: Final answer
   x = 4,129.10