Finding the Third Proportional to 501,968 and 978,718

Step by Step Solution

1. Step 1: Write the proportion equation
   501,968 : 978,718 = 978,718 : x
2. Step 2: Convert to fraction form
   501,968/978,718 = 978,718/x
3. Step 3: Cross multiply
   501,968x = 978,718 × 978,718
4. Step 4: Simplify right side
   501,968x = 957,888,923,524
5. Step 5: Solve for x
   x = 957,888,923,524/501,968
6. Step 6: Final answer
   x = 1,908,266.91