Finding the Third Proportional to 622,923 and 978,654

Step by Step Solution

1. Step 1: Write the proportion equation
   622,923 : 978,654 = 978,654 : x
2. Step 2: Convert to fraction form
   622,923/978,654 = 978,654/x
3. Step 3: Cross multiply
   622,923x = 978,654 × 978,654
4. Step 4: Simplify right side
   622,923x = 957,763,651,716
5. Step 5: Solve for x
   x = 957,763,651,716/622,923
6. Step 6: Final answer
   x = 1,537,531.37