Finding the Third Proportional to 3,569,860 and 5,438,430

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569,860 : 5,438,430 = 5,438,430 : x
2. Step 2: Convert to fraction form
   3,569,860/5,438,430 = 5,438,430/x
3. Step 3: Cross multiply
   3,569,860x = 5,438,430 × 5,438,430
4. Step 4: Simplify right side
   3,569,860x = 29,576,520,864,900
5. Step 5: Solve for x
   x = 29,576,520,864,900/3,569,860
6. Step 6: Final answer
   x = 8,285,064.64