Finding the Third Proportional to 1,854,624 and 3,954,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854,624 : 3,954,216 = 3,954,216 : x
2. Step 2: Convert to fraction form
   1,854,624/3,954,216 = 3,954,216/x
3. Step 3: Cross multiply
   1,854,624x = 3,954,216 × 3,954,216
4. Step 4: Simplify right side
   1,854,624x = 15,635,824,174,656
5. Step 5: Solve for x
   x = 15,635,824,174,656/1,854,624
6. Step 6: Final answer
   x = 8,430,724.60