Finding the Third Proportional to 1,478,401 and 2,161,474

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478,401 : 2,161,474 = 2,161,474 : x
2. Step 2: Convert to fraction form
   1,478,401/2,161,474 = 2,161,474/x
3. Step 3: Cross multiply
   1,478,401x = 2,161,474 × 2,161,474
4. Step 4: Simplify right side
   1,478,401x = 4,671,969,852,676
5. Step 5: Solve for x
   x = 4,671,969,852,676/1,478,401
6. Step 6: Final answer
   x = 3,160,150.63