Finding the Third Proportional to 447,493 and 978,274

Step by Step Solution

1. Step 1: Write the proportion equation
   447,493 : 978,274 = 978,274 : x
2. Step 2: Convert to fraction form
   447,493/978,274 = 978,274/x
3. Step 3: Cross multiply
   447,493x = 978,274 × 978,274
4. Step 4: Simplify right side
   447,493x = 957,020,019,076
5. Step 5: Solve for x
   x = 957,020,019,076/447,493
6. Step 6: Final answer
   x = 2,138,625.67