Finding the Third Proportional to 2,309,618,388 and 5,389,295,826

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,618,388 : 5,389,295,826 = 5,389,295,826 : x
2. Step 2: Convert to fraction form
   2,309,618,388/5,389,295,826 = 5,389,295,826/x
3. Step 3: Cross multiply
   2,309,618,388x = 5,389,295,826 × 5,389,295,826
4. Step 4: Simplify right side
   2,309,618,388x = 29,044,509,500,141,023,232
5. Step 5: Solve for x
   x = 29,044,509,500,141,023,232/2,309,618,388
6. Step 6: Final answer
   x = 12,575,458,201.69