Finding the Third Proportional to 1,369,910 and 2,181,705

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,910 : 2,181,705 = 2,181,705 : x
2. Step 2: Convert to fraction form
   1,369,910/2,181,705 = 2,181,705/x
3. Step 3: Cross multiply
   1,369,910x = 2,181,705 × 2,181,705
4. Step 4: Simplify right side
   1,369,910x = 4,759,836,707,025
5. Step 5: Solve for x
   x = 4,759,836,707,025/1,369,910
6. Step 6: Final answer
   x = 3,474,561.62