Finding the Third Proportional to 450,408 and 978,696

Step by Step Solution

1. Step 1: Write the proportion equation
   450,408 : 978,696 = 978,696 : x
2. Step 2: Convert to fraction form
   450,408/978,696 = 978,696/x
3. Step 3: Cross multiply
   450,408x = 978,696 × 978,696
4. Step 4: Simplify right side
   450,408x = 957,845,860,416
5. Step 5: Solve for x
   x = 957,845,860,416/450,408
6. Step 6: Final answer
   x = 2,126,618.22