Finding the Third Proportional to 229,671 and 335,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   229,671 : 335,434.50 = 335,434.50 : x
2. Step 2: Convert to fraction form
   229,671/335,434.50 = 335,434.50/x
3. Step 3: Cross multiply
   229,671x = 335,434.50 × 335,434.50
4. Step 4: Simplify right side
   229,671x = 112,516,303,790.25
5. Step 5: Solve for x
   x = 112,516,303,790.25/229,671
6. Step 6: Final answer
   x = 489,902.09