Finding the Third Proportional to 497,518.50 and 789,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   497,518.50 : 789,064.50 = 789,064.50 : x
2. Step 2: Convert to fraction form
   497,518.50/789,064.50 = 789,064.50/x
3. Step 3: Cross multiply
   497,518.50x = 789,064.50 × 789,064.50
4. Step 4: Simplify right side
   497,518.50x = 622,622,785,160.25
5. Step 5: Solve for x
   x = 622,622,785,160.25/497,518.50
6. Step 6: Final answer
   x = 1,251,456.55