Finding the Third Proportional to 1,619,389 and 2,420,161

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619,389 : 2,420,161 = 2,420,161 : x
2. Step 2: Convert to fraction form
   1,619,389/2,420,161 = 2,420,161/x
3. Step 3: Cross multiply
   1,619,389x = 2,420,161 × 2,420,161
4. Step 4: Simplify right side
   1,619,389x = 5,857,179,265,921
5. Step 5: Solve for x
   x = 5,857,179,265,921/1,619,389
6. Step 6: Final answer
   x = 3,616,906.91