Finding the Third Proportional to 341.72 and 740.39

Step by Step Solution

1. Step 1: Write the proportion equation
   341.72 : 740.39 = 740.39 : x
2. Step 2: Convert to fraction form
   341.72/740.39 = 740.39/x
3. Step 3: Cross multiply
   341.72x = 740.39 × 740.39
4. Step 4: Simplify right side
   341.72x = 548,178.28
5. Step 5: Solve for x
   x = 548,178.28/341.72
6. Step 6: Final answer
   x = 1,604.18