Finding the Third Proportional to 1,871,728 and 3,831,990

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871,728 : 3,831,990 = 3,831,990 : x
2. Step 2: Convert to fraction form
   1,871,728/3,831,990 = 3,831,990/x
3. Step 3: Cross multiply
   1,871,728x = 3,831,990 × 3,831,990
4. Step 4: Simplify right side
   1,871,728x = 14,684,147,360,100
5. Step 5: Solve for x
   x = 14,684,147,360,100/1,871,728
6. Step 6: Final answer
   x = 7,845,235.72