Finding the Third Proportional to 1,863,402 and 3,970,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863,402 : 3,970,836 = 3,970,836 : x
2. Step 2: Convert to fraction form
   1,863,402/3,970,836 = 3,970,836/x
3. Step 3: Cross multiply
   1,863,402x = 3,970,836 × 3,970,836
4. Step 4: Simplify right side
   1,863,402x = 15,767,538,538,896
5. Step 5: Solve for x
   x = 15,767,538,538,896/1,863,402
6. Step 6: Final answer
   x = 8,461,694.55