Finding the Third Proportional to 428.41 and 582.82

Step by Step Solution

1. Step 1: Write the proportion equation
   428.41 : 582.82 = 582.82 : x
2. Step 2: Convert to fraction form
   428.41/582.82 = 582.82/x
3. Step 3: Cross multiply
   428.41x = 582.82 × 582.82
4. Step 4: Simplify right side
   428.41x = 339,679.52
5. Step 5: Solve for x
   x = 339,679.52/428.41
6. Step 6: Final answer
   x = 792.88