Finding the Third Proportional to 1,814,428 and 3,906,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814,428 : 3,906,200 = 3,906,200 : x
2. Step 2: Convert to fraction form
   1,814,428/3,906,200 = 3,906,200/x
3. Step 3: Cross multiply
   1,814,428x = 3,906,200 × 3,906,200
4. Step 4: Simplify right side
   1,814,428x = 15,258,398,440,000
5. Step 5: Solve for x
   x = 15,258,398,440,000/1,814,428
6. Step 6: Final answer
   x = 8,409,481.36