Finding the Third Proportional to 551.38 and 749.38

Step by Step Solution

1. Step 1: Write the proportion equation
   551.38 : 749.38 = 749.38 : x
2. Step 2: Convert to fraction form
   551.38/749.38 = 749.38/x
3. Step 3: Cross multiply
   551.38x = 749.38 × 749.38
4. Step 4: Simplify right side
   551.38x = 561,562.89
5. Step 5: Solve for x
   x = 561,562.89/551.38
6. Step 6: Final answer
   x = 1,018.48