Finding the Third Proportional to 359,764 and 789,512

Step by Step Solution

1. Step 1: Write the proportion equation
   359,764 : 789,512 = 789,512 : x
2. Step 2: Convert to fraction form
   359,764/789,512 = 789,512/x
3. Step 3: Cross multiply
   359,764x = 789,512 × 789,512
4. Step 4: Simplify right side
   359,764x = 623,329,198,144
5. Step 5: Solve for x
   x = 623,329,198,144/359,764
6. Step 6: Final answer
   x = 1,732,605.81