Finding the Third Proportional to 334,916 and 722,308

Step by Step Solution

1. Step 1: Write the proportion equation
   334,916 : 722,308 = 722,308 : x
2. Step 2: Convert to fraction form
   334,916/722,308 = 722,308/x
3. Step 3: Cross multiply
   334,916x = 722,308 × 722,308
4. Step 4: Simplify right side
   334,916x = 521,728,846,864
5. Step 5: Solve for x
   x = 521,728,846,864/334,916
6. Step 6: Final answer
   x = 1,557,790.15