Finding the Third Proportional to 331,116 and 715,162

Step by Step Solution

1. Step 1: Write the proportion equation
   331,116 : 715,162 = 715,162 : x
2. Step 2: Convert to fraction form
   331,116/715,162 = 715,162/x
3. Step 3: Cross multiply
   331,116x = 715,162 × 715,162
4. Step 4: Simplify right side
   331,116x = 511,456,686,244
5. Step 5: Solve for x
   x = 511,456,686,244/331,116
6. Step 6: Final answer
   x = 1,544,645.04