Finding the Third Proportional to 628,743,139,588.50 and 1,367,648,578,359

Step by Step Solution

1. Step 1: Write the proportion equation
   628,743,139,588.50 : 1,367,648,578,359 = 1,367,648,578,359 : x
2. Step 2: Convert to fraction form
   628,743,139,588.50/1,367,648,578,359 = 1,367,648,578,359/x
3. Step 3: Cross multiply
   628,743,139,588.50x = 1,367,648,578,359 × 1,367,648,578,359
4. Step 4: Simplify right side
   628,743,139,588.50x = 1,870,462,633,887,393,761,984,512
5. Step 5: Solve for x
   x = 1,870,462,633,887,393,761,984,512/628,743,139,588.50
6. Step 6: Final answer
   x = 2,974,923,328,963.20