Finding the Third Proportional to 229,904 and 355,096

Step by Step Solution

1. Step 1: Write the proportion equation
   229,904 : 355,096 = 355,096 : x
2. Step 2: Convert to fraction form
   229,904/355,096 = 355,096/x
3. Step 3: Cross multiply
   229,904x = 355,096 × 355,096
4. Step 4: Simplify right side
   229,904x = 126,093,169,216
5. Step 5: Solve for x
   x = 126,093,169,216/229,904
6. Step 6: Final answer
   x = 548,460.09