Finding the Third Proportional to 450,654 and 978,338

Step by Step Solution

1. Step 1: Write the proportion equation
   450,654 : 978,338 = 978,338 : x
2. Step 2: Convert to fraction form
   450,654/978,338 = 978,338/x
3. Step 3: Cross multiply
   450,654x = 978,338 × 978,338
4. Step 4: Simplify right side
   450,654x = 957,145,242,244
5. Step 5: Solve for x
   x = 957,145,242,244/450,654
6. Step 6: Final answer
   x = 2,123,902.69