Finding the Third Proportional to 363,906 and 789,972

Step by Step Solution

1. Step 1: Write the proportion equation
   363,906 : 789,972 = 789,972 : x
2. Step 2: Convert to fraction form
   363,906/789,972 = 789,972/x
3. Step 3: Cross multiply
   363,906x = 789,972 × 789,972
4. Step 4: Simplify right side
   363,906x = 624,055,760,784
5. Step 5: Solve for x
   x = 624,055,760,784/363,906
6. Step 6: Final answer
   x = 1,714,881.76