Finding the Third Proportional to 317,959.50 and 673,827

Step by Step Solution

1. Step 1: Write the proportion equation
   317,959.50 : 673,827 = 673,827 : x
2. Step 2: Convert to fraction form
   317,959.50/673,827 = 673,827/x
3. Step 3: Cross multiply
   317,959.50x = 673,827 × 673,827
4. Step 4: Simplify right side
   317,959.50x = 454,042,825,929
5. Step 5: Solve for x
   x = 454,042,825,929/317,959.50
6. Step 6: Final answer
   x = 1,427,989.50