Finding the Third Proportional to 731,123 and 978,019

Step by Step Solution

1. Step 1: Write the proportion equation
   731,123 : 978,019 = 978,019 : x
2. Step 2: Convert to fraction form
   731,123/978,019 = 978,019/x
3. Step 3: Cross multiply
   731,123x = 978,019 × 978,019
4. Step 4: Simplify right side
   731,123x = 956,521,164,361
5. Step 5: Solve for x
   x = 956,521,164,361/731,123
6. Step 6: Final answer
   x = 1,308,290.35