Finding the Third Proportional to 443,917 and 978,323

Step by Step Solution

1. Step 1: Write the proportion equation
   443,917 : 978,323 = 978,323 : x
2. Step 2: Convert to fraction form
   443,917/978,323 = 978,323/x
3. Step 3: Cross multiply
   443,917x = 978,323 × 978,323
4. Step 4: Simplify right side
   443,917x = 957,115,892,329
5. Step 5: Solve for x
   x = 957,115,892,329/443,917
6. Step 6: Final answer
   x = 2,156,069.47