Finding the Third Proportional to 1,218,792 and 2,640,966

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,792 : 2,640,966 = 2,640,966 : x
2. Step 2: Convert to fraction form
   1,218,792/2,640,966 = 2,640,966/x
3. Step 3: Cross multiply
   1,218,792x = 2,640,966 × 2,640,966
4. Step 4: Simplify right side
   1,218,792x = 6,974,701,413,156
5. Step 5: Solve for x
   x = 6,974,701,413,156/1,218,792
6. Step 6: Final answer
   x = 5,722,634.72