Finding the Third Proportional to 456,096 and 978,608

Step by Step Solution

1. Step 1: Write the proportion equation
   456,096 : 978,608 = 978,608 : x
2. Step 2: Convert to fraction form
   456,096/978,608 = 978,608/x
3. Step 3: Cross multiply
   456,096x = 978,608 × 978,608
4. Step 4: Simplify right side
   456,096x = 957,673,617,664
5. Step 5: Solve for x
   x = 957,673,617,664/456,096
6. Step 6: Final answer
   x = 2,099,719.40