Finding the Third Proportional to 403,609.50 and 833,456.25

Step by Step Solution

1. Step 1: Write the proportion equation
   403,609.50 : 833,456.25 = 833,456.25 : x
2. Step 2: Convert to fraction form
   403,609.50/833,456.25 = 833,456.25/x
3. Step 3: Cross multiply
   403,609.50x = 833,456.25 × 833,456.25
4. Step 4: Simplify right side
   403,609.50x = 694,649,320,664.06
5. Step 5: Solve for x
   x = 694,649,320,664.06/403,609.50
6. Step 6: Final answer
   x = 1,721,092.59