Finding the Third Proportional to 628,743,139,342 and 1,367,648,577,868

Step by Step Solution

1. Step 1: Write the proportion equation
   628,743,139,342 : 1,367,648,577,868 = 1,367,648,577,868 : x
2. Step 2: Convert to fraction form
   628,743,139,342/1,367,648,577,868 = 1,367,648,577,868/x
3. Step 3: Cross multiply
   628,743,139,342x = 1,367,648,577,868 × 1,367,648,577,868
4. Step 4: Simplify right side
   628,743,139,342x = 1,870,462,632,544,362,857,234,432
5. Step 5: Solve for x
   x = 1,870,462,632,544,362,857,234,432/628,743,139,342
6. Step 6: Final answer
   x = 2,974,923,327,993.47