Finding the Third Proportional to 2,690,136 and 5,805,243

Step by Step Solution

1. Step 1: Write the proportion equation
   2,690,136 : 5,805,243 = 5,805,243 : x
2. Step 2: Convert to fraction form
   2,690,136/5,805,243 = 5,805,243/x
3. Step 3: Cross multiply
   2,690,136x = 5,805,243 × 5,805,243
4. Step 4: Simplify right side
   2,690,136x = 33,700,846,289,049
5. Step 5: Solve for x
   x = 33,700,846,289,049/2,690,136
6. Step 6: Final answer
   x = 12,527,562.28