Finding the Third Proportional to 5,369,425,858 and 12,657,229,801

Step by Step Solution

1. Step 1: Write the proportion equation
   5,369,425,858 : 12,657,229,801 = 12,657,229,801 : x
2. Step 2: Convert to fraction form
   5,369,425,858/12,657,229,801 = 12,657,229,801/x
3. Step 3: Cross multiply
   5,369,425,858x = 12,657,229,801 × 12,657,229,801
4. Step 4: Simplify right side
   5,369,425,858x = 160,205,466,235,322,499,072
5. Step 5: Solve for x
   x = 160,205,466,235,322,499,072/5,369,425,858
6. Step 6: Final answer
   x = 29,836,610,183.68