Finding the Third Proportional to 664,168 and 1,037,728

Step by Step Solution

1. Step 1: Write the proportion equation
   664,168 : 1,037,728 = 1,037,728 : x
2. Step 2: Convert to fraction form
   664,168/1,037,728 = 1,037,728/x
3. Step 3: Cross multiply
   664,168x = 1,037,728 × 1,037,728
4. Step 4: Simplify right side
   664,168x = 1,076,879,401,984
5. Step 5: Solve for x
   x = 1,076,879,401,984/664,168
6. Step 6: Final answer
   x = 1,621,396.10