Finding the Third Proportional to 449,991 and 978,714

Step by Step Solution

1. Step 1: Write the proportion equation
   449,991 : 978,714 = 978,714 : x
2. Step 2: Convert to fraction form
   449,991/978,714 = 978,714/x
3. Step 3: Cross multiply
   449,991x = 978,714 × 978,714
4. Step 4: Simplify right side
   449,991x = 957,881,093,796
5. Step 5: Solve for x
   x = 957,881,093,796/449,991
6. Step 6: Final answer
   x = 2,128,667.23