Finding the Third Proportional to 229,345.50 and 518,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   229,345.50 : 518,150.50 = 518,150.50 : x
2. Step 2: Convert to fraction form
   229,345.50/518,150.50 = 518,150.50/x
3. Step 3: Cross multiply
   229,345.50x = 518,150.50 × 518,150.50
4. Step 4: Simplify right side
   229,345.50x = 268,479,940,650.25
5. Step 5: Solve for x
   x = 268,479,940,650.25/229,345.50
6. Step 6: Final answer
   x = 1,170,635.31