Finding the Third Proportional to 335,299 and 722,870

Step by Step Solution

1. Step 1: Write the proportion equation
   335,299 : 722,870 = 722,870 : x
2. Step 2: Convert to fraction form
   335,299/722,870 = 722,870/x
3. Step 3: Cross multiply
   335,299x = 722,870 × 722,870
4. Step 4: Simplify right side
   335,299x = 522,541,036,900
5. Step 5: Solve for x
   x = 522,541,036,900/335,299
6. Step 6: Final answer
   x = 1,558,433.03