Finding the Third Proportional to 336,867.75 and 495,443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   336,867.75 : 495,443.25 = 495,443.25 : x
2. Step 2: Convert to fraction form
   336,867.75/495,443.25 = 495,443.25/x
3. Step 3: Cross multiply
   336,867.75x = 495,443.25 × 495,443.25
4. Step 4: Simplify right side
   336,867.75x = 245,464,013,970.56
5. Step 5: Solve for x
   x = 245,464,013,970.56/336,867.75
6. Step 6: Final answer
   x = 728,665.82