Finding the Third Proportional to 451,843 and 978,072

Step by Step Solution

1. Step 1: Write the proportion equation
   451,843 : 978,072 = 978,072 : x
2. Step 2: Convert to fraction form
   451,843/978,072 = 978,072/x
3. Step 3: Cross multiply
   451,843x = 978,072 × 978,072
4. Step 4: Simplify right side
   451,843x = 956,624,837,184
5. Step 5: Solve for x
   x = 956,624,837,184/451,843
6. Step 6: Final answer
   x = 2,117,162.02