Finding the Third Proportional to 656,040 and 978,997

Step by Step Solution

1. Step 1: Write the proportion equation
   656,040 : 978,997 = 978,997 : x
2. Step 2: Convert to fraction form
   656,040/978,997 = 978,997/x
3. Step 3: Cross multiply
   656,040x = 978,997 × 978,997
4. Step 4: Simplify right side
   656,040x = 958,435,126,009
5. Step 5: Solve for x
   x = 958,435,126,009/656,040
6. Step 6: Final answer
   x = 1,460,940.07