Finding the Third Proportional to 5,728,470,699 and 12,338,389,878

Step by Step Solution

1. Step 1: Write the proportion equation
   5,728,470,699 : 12,338,389,878 = 12,338,389,878 : x
2. Step 2: Convert to fraction form
   5,728,470,699/12,338,389,878 = 12,338,389,878/x
3. Step 3: Cross multiply
   5,728,470,699x = 12,338,389,878 × 12,338,389,878
4. Step 4: Simplify right side
   5,728,470,699x = 152,235,864,781,532,856,320
5. Step 5: Solve for x
   x = 152,235,864,781,532,856,320/5,728,470,699
6. Step 6: Final answer
   x = 26,575,306,531.31