Finding the Third Proportional to 501,966 and 978,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   501,966 : 978,711.50 = 978,711.50 : x
2. Step 2: Convert to fraction form
   501,966/978,711.50 = 978,711.50/x
3. Step 3: Cross multiply
   501,966x = 978,711.50 × 978,711.50
4. Step 4: Simplify right side
   501,966x = 957,876,200,232.25
5. Step 5: Solve for x
   x = 957,876,200,232.25/501,966
6. Step 6: Final answer
   x = 1,908,249.16