Finding the Third Proportional to 711.56 and 957.38

Step by Step Solution

1. Step 1: Write the proportion equation
   711.56 : 957.38 = 957.38 : x
2. Step 2: Convert to fraction form
   711.56/957.38 = 957.38/x
3. Step 3: Cross multiply
   711.56x = 957.38 × 957.38
4. Step 4: Simplify right side
   711.56x = 916,566.89
5. Step 5: Solve for x
   x = 916,566.89/711.56
6. Step 6: Final answer
   x = 1,288.10