Finding the Third Proportional to 448,856 and 978,064

Step by Step Solution

1. Step 1: Write the proportion equation
   448,856 : 978,064 = 978,064 : x
2. Step 2: Convert to fraction form
   448,856/978,064 = 978,064/x
3. Step 3: Cross multiply
   448,856x = 978,064 × 978,064
4. Step 4: Simplify right side
   448,856x = 956,609,188,096
5. Step 5: Solve for x
   x = 956,609,188,096/448,856
6. Step 6: Final answer
   x = 2,131,216.22