Finding the Third Proportional to 1,238,616 and 2,512,243

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,616 : 2,512,243 = 2,512,243 : x
2. Step 2: Convert to fraction form
   1,238,616/2,512,243 = 2,512,243/x
3. Step 3: Cross multiply
   1,238,616x = 2,512,243 × 2,512,243
4. Step 4: Simplify right side
   1,238,616x = 6,311,364,891,049
5. Step 5: Solve for x
   x = 6,311,364,891,049/1,238,616
6. Step 6: Final answer
   x = 5,095,497.63