Finding the Third Proportional to 3,569,874 and 5,438,478

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569,874 : 5,438,478 = 5,438,478 : x
2. Step 2: Convert to fraction form
   3,569,874/5,438,478 = 5,438,478/x
3. Step 3: Cross multiply
   3,569,874x = 5,438,478 × 5,438,478
4. Step 4: Simplify right side
   3,569,874x = 29,577,042,956,484
5. Step 5: Solve for x
   x = 29,577,042,956,484/3,569,874
6. Step 6: Final answer
   x = 8,285,178.40