Finding the Third Proportional to 2,137,872 and 4,452,648

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137,872 : 4,452,648 = 4,452,648 : x
2. Step 2: Convert to fraction form
   2,137,872/4,452,648 = 4,452,648/x
3. Step 3: Cross multiply
   2,137,872x = 4,452,648 × 4,452,648
4. Step 4: Simplify right side
   2,137,872x = 19,826,074,211,904
5. Step 5: Solve for x
   x = 19,826,074,211,904/2,137,872
6. Step 6: Final answer
   x = 9,273,742.40