Finding the Third Proportional to 451,882 and 978,158

Step by Step Solution

1. Step 1: Write the proportion equation
   451,882 : 978,158 = 978,158 : x
2. Step 2: Convert to fraction form
   451,882/978,158 = 978,158/x
3. Step 3: Cross multiply
   451,882x = 978,158 × 978,158
4. Step 4: Simplify right side
   451,882x = 956,793,072,964
5. Step 5: Solve for x
   x = 956,793,072,964/451,882
6. Step 6: Final answer
   x = 2,117,351.59