Finding the Third Proportional to 450,646 and 978,322

Step by Step Solution

1. Step 1: Write the proportion equation
   450,646 : 978,322 = 978,322 : x
2. Step 2: Convert to fraction form
   450,646/978,322 = 978,322/x
3. Step 3: Cross multiply
   450,646x = 978,322 × 978,322
4. Step 4: Simplify right side
   450,646x = 957,113,935,684
5. Step 5: Solve for x
   x = 957,113,935,684/450,646
6. Step 6: Final answer
   x = 2,123,870.92