Finding the Third Proportional to 1,281,620 and 2,728,885

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281,620 : 2,728,885 = 2,728,885 : x
2. Step 2: Convert to fraction form
   1,281,620/2,728,885 = 2,728,885/x
3. Step 3: Cross multiply
   1,281,620x = 2,728,885 × 2,728,885
4. Step 4: Simplify right side
   1,281,620x = 7,446,813,343,225
5. Step 5: Solve for x
   x = 7,446,813,343,225/1,281,620
6. Step 6: Final answer
   x = 5,810,469.05