Finding the Third Proportional to 647.75 and 942.38

Step by Step Solution

1. Step 1: Write the proportion equation
   647.75 : 942.38 = 942.38 : x
2. Step 2: Convert to fraction form
   647.75/942.38 = 942.38/x
3. Step 3: Cross multiply
   647.75x = 942.38 × 942.38
4. Step 4: Simplify right side
   647.75x = 888,070.64
5. Step 5: Solve for x
   x = 888,070.64/647.75
6. Step 6: Final answer
   x = 1,371.01