Finding the Third Proportional to 2,586,436 and 5,620,504

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,436 : 5,620,504 = 5,620,504 : x
2. Step 2: Convert to fraction form
   2,586,436/5,620,504 = 5,620,504/x
3. Step 3: Cross multiply
   2,586,436x = 5,620,504 × 5,620,504
4. Step 4: Simplify right side
   2,586,436x = 31,590,065,214,016
5. Step 5: Solve for x
   x = 31,590,065,214,016/2,586,436
6. Step 6: Final answer
   x = 12,213,743.24