Finding the Third Proportional to 2,338,785,990 and 5,200,487,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338,785,990 : 5,200,487,640 = 5,200,487,640 : x
2. Step 2: Convert to fraction form
   2,338,785,990/5,200,487,640 = 5,200,487,640/x
3. Step 3: Cross multiply
   2,338,785,990x = 5,200,487,640 × 5,200,487,640
4. Step 4: Simplify right side
   2,338,785,990x = 27,045,071,693,792,768,000
5. Step 5: Solve for x
   x = 27,045,071,693,792,768,000/2,338,785,990
6. Step 6: Final answer
   x = 11,563,722,294.14