Finding the Third Proportional to 2,145,909 and 4,660,874

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,909 : 4,660,874 = 4,660,874 : x
2. Step 2: Convert to fraction form
   2,145,909/4,660,874 = 4,660,874/x
3. Step 3: Cross multiply
   2,145,909x = 4,660,874 × 4,660,874
4. Step 4: Simplify right side
   2,145,909x = 21,723,746,443,876
5. Step 5: Solve for x
   x = 21,723,746,443,876/2,145,909
6. Step 6: Final answer
   x = 10,123,330.69