Finding the Third Proportional to 20,786,682,963 and 42,675,331,116

Step by Step Solution

1. Step 1: Write the proportion equation
   20,786,682,963 : 42,675,331,116 = 42,675,331,116 : x
2. Step 2: Convert to fraction form
   20,786,682,963/42,675,331,116 = 42,675,331,116/x
3. Step 3: Cross multiply
   20,786,682,963x = 42,675,331,116 × 42,675,331,116
4. Step 4: Simplify right side
   20,786,682,963x = 1,821,183,885,860,237,737,984
5. Step 5: Solve for x
   x = 1,821,183,885,860,237,737,984/20,786,682,963
6. Step 6: Final answer
   x = 87,613,011,133.23