Finding the Third Proportional to 2,578,371 and 5,615,508

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,371 : 5,615,508 = 5,615,508 : x
2. Step 2: Convert to fraction form
   2,578,371/5,615,508 = 5,615,508/x
3. Step 3: Cross multiply
   2,578,371x = 5,615,508 × 5,615,508
4. Step 4: Simplify right side
   2,578,371x = 31,533,930,098,064
5. Step 5: Solve for x
   x = 31,533,930,098,064/2,578,371
6. Step 6: Final answer
   x = 12,230,175.60