Finding the Third Proportional to 3,215,584 and 5,118,564

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215,584 : 5,118,564 = 5,118,564 : x
2. Step 2: Convert to fraction form
   3,215,584/5,118,564 = 5,118,564/x
3. Step 3: Cross multiply
   3,215,584x = 5,118,564 × 5,118,564
4. Step 4: Simplify right side
   3,215,584x = 26,199,697,422,096
5. Step 5: Solve for x
   x = 26,199,697,422,096/3,215,584
6. Step 6: Final answer
   x = 8,147,726.02