Finding the Third Proportional to 1,855,561 and 3,954,122

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855,561 : 3,954,122 = 3,954,122 : x
2. Step 2: Convert to fraction form
   1,855,561/3,954,122 = 3,954,122/x
3. Step 3: Cross multiply
   1,855,561x = 3,954,122 × 3,954,122
4. Step 4: Simplify right side
   1,855,561x = 15,635,080,790,884
5. Step 5: Solve for x
   x = 15,635,080,790,884/1,855,561
6. Step 6: Final answer
   x = 8,426,066.72