Finding the Third Proportional to 1,417,920 and 2,179,442

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417,920 : 2,179,442 = 2,179,442 : x
2. Step 2: Convert to fraction form
   1,417,920/2,179,442 = 2,179,442/x
3. Step 3: Cross multiply
   1,417,920x = 2,179,442 × 2,179,442
4. Step 4: Simplify right side
   1,417,920x = 4,749,967,431,364
5. Step 5: Solve for x
   x = 4,749,967,431,364/1,417,920
6. Step 6: Final answer
   x = 3,349,954.46