Finding the Third Proportional to 3,419,057 and 5,413,990

Step by Step Solution

1. Step 1: Write the proportion equation
   3,419,057 : 5,413,990 = 5,413,990 : x
2. Step 2: Convert to fraction form
   3,419,057/5,413,990 = 5,413,990/x
3. Step 3: Cross multiply
   3,419,057x = 5,413,990 × 5,413,990
4. Step 4: Simplify right side
   3,419,057x = 29,311,287,720,100
5. Step 5: Solve for x
   x = 29,311,287,720,100/3,419,057
6. Step 6: Final answer
   x = 8,572,915.78