Finding the Third Proportional to 911.50 and 1,993

Step by Step Solution

1. Step 1: Write the proportion equation
   911.50 : 1,993 = 1,993 : x
2. Step 2: Convert to fraction form
   911.50/1,993 = 1,993/x
3. Step 3: Cross multiply
   911.50x = 1,993 × 1,993
4. Step 4: Simplify right side
   911.50x = 3,972,049
5. Step 5: Solve for x
   x = 3,972,049/911.50
6. Step 6: Final answer
   x = 4,357.71