Finding the Third Proportional to 637,828 and 978,704

Step by Step Solution

1. Step 1: Write the proportion equation
   637,828 : 978,704 = 978,704 : x
2. Step 2: Convert to fraction form
   637,828/978,704 = 978,704/x
3. Step 3: Cross multiply
   637,828x = 978,704 × 978,704
4. Step 4: Simplify right side
   637,828x = 957,861,519,616
5. Step 5: Solve for x
   x = 957,861,519,616/637,828
6. Step 6: Final answer
   x = 1,501,755.21