Finding the Third Proportional to 1,055,976 and 2,161,158

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,976 : 2,161,158 = 2,161,158 : x
2. Step 2: Convert to fraction form
   1,055,976/2,161,158 = 2,161,158/x
3. Step 3: Cross multiply
   1,055,976x = 2,161,158 × 2,161,158
4. Step 4: Simplify right side
   1,055,976x = 4,670,603,900,964
5. Step 5: Solve for x
   x = 4,670,603,900,964/1,055,976
6. Step 6: Final answer
   x = 4,423,020.88