Finding the Third Proportional to 388,050.75 and 823,061.25

Step by Step Solution

1. Step 1: Write the proportion equation
   388,050.75 : 823,061.25 = 823,061.25 : x
2. Step 2: Convert to fraction form
   388,050.75/823,061.25 = 823,061.25/x
3. Step 3: Cross multiply
   388,050.75x = 823,061.25 × 823,061.25
4. Step 4: Simplify right side
   388,050.75x = 677,429,821,251.56
5. Step 5: Solve for x
   x = 677,429,821,251.56/388,050.75
6. Step 6: Final answer
   x = 1,745,724.81