Finding the Third Proportional to 335,057.50 and 722,600

Step by Step Solution

1. Step 1: Write the proportion equation
   335,057.50 : 722,600 = 722,600 : x
2. Step 2: Convert to fraction form
   335,057.50/722,600 = 722,600/x
3. Step 3: Cross multiply
   335,057.50x = 722,600 × 722,600
4. Step 4: Simplify right side
   335,057.50x = 522,150,760,000
5. Step 5: Solve for x
   x = 522,150,760,000/335,057.50
6. Step 6: Final answer
   x = 1,558,391.50