Finding the Third Proportional to 1,822,896 and 3,989,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,896 : 3,989,028 = 3,989,028 : x
2. Step 2: Convert to fraction form
   1,822,896/3,989,028 = 3,989,028/x
3. Step 3: Cross multiply
   1,822,896x = 3,989,028 × 3,989,028
4. Step 4: Simplify right side
   1,822,896x = 15,912,344,384,784
5. Step 5: Solve for x
   x = 15,912,344,384,784/1,822,896
6. Step 6: Final answer
   x = 8,729,156.45