Finding the Third Proportional to 3,838,896 and 8,400,960

Step by Step Solution

1. Step 1: Write the proportion equation
   3,838,896 : 8,400,960 = 8,400,960 : x
2. Step 2: Convert to fraction form
   3,838,896/8,400,960 = 8,400,960/x
3. Step 3: Cross multiply
   3,838,896x = 8,400,960 × 8,400,960
4. Step 4: Simplify right side
   3,838,896x = 70,576,128,921,600
5. Step 5: Solve for x
   x = 70,576,128,921,600/3,838,896
6. Step 6: Final answer
   x = 18,384,485.78