Finding the Third Proportional to 2,586,198 and 5,620,056

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,198 : 5,620,056 = 5,620,056 : x
2. Step 2: Convert to fraction form
   2,586,198/5,620,056 = 5,620,056/x
3. Step 3: Cross multiply
   2,586,198x = 5,620,056 × 5,620,056
4. Step 4: Simplify right side
   2,586,198x = 31,585,029,443,136
5. Step 5: Solve for x
   x = 31,585,029,443,136/2,586,198
6. Step 6: Final answer
   x = 12,212,920.06