Finding the Third Proportional to 731,121 and 978,016

Step by Step Solution

1. Step 1: Write the proportion equation
   731,121 : 978,016 = 978,016 : x
2. Step 2: Convert to fraction form
   731,121/978,016 = 978,016/x
3. Step 3: Cross multiply
   731,121x = 978,016 × 978,016
4. Step 4: Simplify right side
   731,121x = 956,515,296,256
5. Step 5: Solve for x
   x = 956,515,296,256/731,121
6. Step 6: Final answer
   x = 1,308,285.90