Finding the Third Proportional to 443,911 and 978,304

Step by Step Solution

1. Step 1: Write the proportion equation
   443,911 : 978,304 = 978,304 : x
2. Step 2: Convert to fraction form
   443,911/978,304 = 978,304/x
3. Step 3: Cross multiply
   443,911x = 978,304 × 978,304
4. Step 4: Simplify right side
   443,911x = 957,078,716,416
5. Step 5: Solve for x
   x = 957,078,716,416/443,911
6. Step 6: Final answer
   x = 2,156,014.87