Finding the Third Proportional to 449,330 and 978,008

Step by Step Solution

1. Step 1: Write the proportion equation
   449,330 : 978,008 = 978,008 : x
2. Step 2: Convert to fraction form
   449,330/978,008 = 978,008/x
3. Step 3: Cross multiply
   449,330x = 978,008 × 978,008
4. Step 4: Simplify right side
   449,330x = 956,499,648,064
5. Step 5: Solve for x
   x = 956,499,648,064/449,330
6. Step 6: Final answer
   x = 2,128,724.21