Finding the Third Proportional to 789,640 and 1,732,912

Step by Step Solution

1. Step 1: Write the proportion equation
   789,640 : 1,732,912 = 1,732,912 : x
2. Step 2: Convert to fraction form
   789,640/1,732,912 = 1,732,912/x
3. Step 3: Cross multiply
   789,640x = 1,732,912 × 1,732,912
4. Step 4: Simplify right side
   789,640x = 3,002,983,999,744
5. Step 5: Solve for x
   x = 3,002,983,999,744/789,640
6. Step 6: Final answer
   x = 3,802,978.57