Finding the Third Proportional to 449,975 and 978,682

Step by Step Solution

1. Step 1: Write the proportion equation
   449,975 : 978,682 = 978,682 : x
2. Step 2: Convert to fraction form
   449,975/978,682 = 978,682/x
3. Step 3: Cross multiply
   449,975x = 978,682 × 978,682
4. Step 4: Simplify right side
   449,975x = 957,818,457,124
5. Step 5: Solve for x
   x = 957,818,457,124/449,975
6. Step 6: Final answer
   x = 2,128,603.72