Finding the Third Proportional to 2,587,217 and 5,627,446

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,217 : 5,627,446 = 5,627,446 : x
2. Step 2: Convert to fraction form
   2,587,217/5,627,446 = 5,627,446/x
3. Step 3: Cross multiply
   2,587,217x = 5,627,446 × 5,627,446
4. Step 4: Simplify right side
   2,587,217x = 31,668,148,482,916
5. Step 5: Solve for x
   x = 31,668,148,482,916/2,587,217
6. Step 6: Final answer
   x = 12,240,236.70