Finding the Third Proportional to 443,908 and 978,299

Step by Step Solution

1. Step 1: Write the proportion equation
   443,908 : 978,299 = 978,299 : x
2. Step 2: Convert to fraction form
   443,908/978,299 = 978,299/x
3. Step 3: Cross multiply
   443,908x = 978,299 × 978,299
4. Step 4: Simplify right side
   443,908x = 957,068,933,401
5. Step 5: Solve for x
   x = 957,068,933,401/443,908
6. Step 6: Final answer
   x = 2,156,007.40