Finding the Third Proportional to 336,708 and 726,828.75

Step by Step Solution

1. Step 1: Write the proportion equation
   336,708 : 726,828.75 = 726,828.75 : x
2. Step 2: Convert to fraction form
   336,708/726,828.75 = 726,828.75/x
3. Step 3: Cross multiply
   336,708x = 726,828.75 × 726,828.75
4. Step 4: Simplify right side
   336,708x = 528,280,031,826.56
5. Step 5: Solve for x
   x = 528,280,031,826.56/336,708
6. Step 6: Final answer
   x = 1,568,955.99