Finding the Third Proportional to 1,213,569 and 2,660,418

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213,569 : 2,660,418 = 2,660,418 : x
2. Step 2: Convert to fraction form
   1,213,569/2,660,418 = 2,660,418/x
3. Step 3: Cross multiply
   1,213,569x = 2,660,418 × 2,660,418
4. Step 4: Simplify right side
   1,213,569x = 7,077,823,934,724
5. Step 5: Solve for x
   x = 7,077,823,934,724/1,213,569
6. Step 6: Final answer
   x = 5,832,238.57