Finding the Third Proportional to 1,854,890 and 3,909,028

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854,890 : 3,909,028 = 3,909,028 : x
2. Step 2: Convert to fraction form
   1,854,890/3,909,028 = 3,909,028/x
3. Step 3: Cross multiply
   1,854,890x = 3,909,028 × 3,909,028
4. Step 4: Simplify right side
   1,854,890x = 15,280,499,904,784
5. Step 5: Solve for x
   x = 15,280,499,904,784/1,854,890
6. Step 6: Final answer
   x = 8,237,954.76