Finding the Third Proportional to 3,153,380 and 4,871,919

Step by Step Solution

1. Step 1: Write the proportion equation
   3,153,380 : 4,871,919 = 4,871,919 : x
2. Step 2: Convert to fraction form
   3,153,380/4,871,919 = 4,871,919/x
3. Step 3: Cross multiply
   3,153,380x = 4,871,919 × 4,871,919
4. Step 4: Simplify right side
   3,153,380x = 23,735,594,742,561
5. Step 5: Solve for x
   x = 23,735,594,742,561/3,153,380
6. Step 6: Final answer
   x = 7,527,032.82