Finding the Third Proportional to 451,864 and 978,122

Step by Step Solution

1. Step 1: Write the proportion equation
   451,864 : 978,122 = 978,122 : x
2. Step 2: Convert to fraction form
   451,864/978,122 = 978,122/x
3. Step 3: Cross multiply
   451,864x = 978,122 × 978,122
4. Step 4: Simplify right side
   451,864x = 956,722,646,884
5. Step 5: Solve for x
   x = 956,722,646,884/451,864
6. Step 6: Final answer
   x = 2,117,280.08