Finding the Third Proportional to 2,687,498,510 and 4,172,743,965

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687,498,510 : 4,172,743,965 = 4,172,743,965 : x
2. Step 2: Convert to fraction form
   2,687,498,510/4,172,743,965 = 4,172,743,965/x
3. Step 3: Cross multiply
   2,687,498,510x = 4,172,743,965 × 4,172,743,965
4. Step 4: Simplify right side
   2,687,498,510x = 17,411,792,197,443,921,920
5. Step 5: Solve for x
   x = 17,411,792,197,443,921,920/2,687,498,510
6. Step 6: Final answer
   x = 6,478,809,991.02