Finding the Third Proportional to 451,886 and 978,166

Step by Step Solution

1. Step 1: Write the proportion equation
   451,886 : 978,166 = 978,166 : x
2. Step 2: Convert to fraction form
   451,886/978,166 = 978,166/x
3. Step 3: Cross multiply
   451,886x = 978,166 × 978,166
4. Step 4: Simplify right side
   451,886x = 956,808,723,556
5. Step 5: Solve for x
   x = 956,808,723,556/451,886
6. Step 6: Final answer
   x = 2,117,367.49