Finding the Third Proportional to 168,831 and 267,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,831 : 267,340.50 = 267,340.50 : x
2. Step 2: Convert to fraction form
   168,831/267,340.50 = 267,340.50/x
3. Step 3: Cross multiply
   168,831x = 267,340.50 × 267,340.50
4. Step 4: Simplify right side
   168,831x = 71,470,942,940.25
5. Step 5: Solve for x
   x = 71,470,942,940.25/168,831
6. Step 6: Final answer
   x = 423,328.32