Finding the Third Proportional to 341.72 and 696.25

Step by Step Solution

1. Step 1: Write the proportion equation
   341.72 : 696.25 = 696.25 : x
2. Step 2: Convert to fraction form
   341.72/696.25 = 696.25/x
3. Step 3: Cross multiply
   341.72x = 696.25 × 696.25
4. Step 4: Simplify right side
   341.72x = 484,766.78
5. Step 5: Solve for x
   x = 484,766.78/341.72
6. Step 6: Final answer
   x = 1,418.61