Finding the Third Proportional to 2,613,687 and 5,627,865

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613,687 : 5,627,865 = 5,627,865 : x
2. Step 2: Convert to fraction form
   2,613,687/5,627,865 = 5,627,865/x
3. Step 3: Cross multiply
   2,613,687x = 5,627,865 × 5,627,865
4. Step 4: Simplify right side
   2,613,687x = 31,672,864,458,225
5. Step 5: Solve for x
   x = 31,672,864,458,225/2,613,687
6. Step 6: Final answer
   x = 12,118,078.58