Finding the Third Proportional to 2,581,724 and 5,611,218

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581,724 : 5,611,218 = 5,611,218 : x
2. Step 2: Convert to fraction form
   2,581,724/5,611,218 = 5,611,218/x
3. Step 3: Cross multiply
   2,581,724x = 5,611,218 × 5,611,218
4. Step 4: Simplify right side
   2,581,724x = 31,485,767,443,524
5. Step 5: Solve for x
   x = 31,485,767,443,524/2,581,724
6. Step 6: Final answer
   x = 12,195,636.50