Finding the Third Proportional to 388,813.50 and 796,997.25

Step by Step Solution

1. Step 1: Write the proportion equation
   388,813.50 : 796,997.25 = 796,997.25 : x
2. Step 2: Convert to fraction form
   388,813.50/796,997.25 = 796,997.25/x
3. Step 3: Cross multiply
   388,813.50x = 796,997.25 × 796,997.25
4. Step 4: Simplify right side
   388,813.50x = 635,204,616,507.56
5. Step 5: Solve for x
   x = 635,204,616,507.56/388,813.50
6. Step 6: Final answer
   x = 1,633,700.00