Finding the Third Proportional to 2,631,440 and 5,668,920

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631,440 : 5,668,920 = 5,668,920 : x
2. Step 2: Convert to fraction form
   2,631,440/5,668,920 = 5,668,920/x
3. Step 3: Cross multiply
   2,631,440x = 5,668,920 × 5,668,920
4. Step 4: Simplify right side
   2,631,440x = 32,136,653,966,400
5. Step 5: Solve for x
   x = 32,136,653,966,400/2,631,440
6. Step 6: Final answer
   x = 12,212,573.33