Finding the Third Proportional to 451,876 and 978,146

Step by Step Solution

1. Step 1: Write the proportion equation
   451,876 : 978,146 = 978,146 : x
2. Step 2: Convert to fraction form
   451,876/978,146 = 978,146/x
3. Step 3: Cross multiply
   451,876x = 978,146 × 978,146
4. Step 4: Simplify right side
   451,876x = 956,769,597,316
5. Step 5: Solve for x
   x = 956,769,597,316/451,876
6. Step 6: Final answer
   x = 2,117,327.76