Finding the Third Proportional to 320,794,900,339.70 and 688,158,422,105.80

Step by Step Solution

1. Step 1: Write the proportion equation
   320,794,900,339.70 : 688,158,422,105.80 = 688,158,422,105.80 : x
2. Step 2: Convert to fraction form
   320,794,900,339.70/688,158,422,105.80 = 688,158,422,105.80/x
3. Step 3: Cross multiply
   320,794,900,339.70x = 688,158,422,105.80 × 688,158,422,105.80
4. Step 4: Simplify right side
   320,794,900,339.70x = 473,562,013,915,144,498,708,480
5. Step 5: Solve for x
   x = 473,562,013,915,144,498,708,480/320,794,900,339.70
6. Step 6: Final answer
   x = 1,476,214,283,374.44