Finding the Third Proportional to 681,664 and 1,433,820

Step by Step Solution

1. Step 1: Write the proportion equation
   681,664 : 1,433,820 = 1,433,820 : x
2. Step 2: Convert to fraction form
   681,664/1,433,820 = 1,433,820/x
3. Step 3: Cross multiply
   681,664x = 1,433,820 × 1,433,820
4. Step 4: Simplify right side
   681,664x = 2,055,839,792,400
5. Step 5: Solve for x
   x = 2,055,839,792,400/681,664
6. Step 6: Final answer
   x = 3,015,913.69