Finding the Third Proportional to 229,208 and 354,180

Step by Step Solution

1. Step 1: Write the proportion equation
   229,208 : 354,180 = 354,180 : x
2. Step 2: Convert to fraction form
   229,208/354,180 = 354,180/x
3. Step 3: Cross multiply
   229,208x = 354,180 × 354,180
4. Step 4: Simplify right side
   229,208x = 125,443,472,400
5. Step 5: Solve for x
   x = 125,443,472,400/229,208
6. Step 6: Final answer
   x = 547,290.99