Finding the Third Proportional to 5,899,113,253.69 and 12,639,654,459.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,899,113,253.69 : 12,639,654,459.28 = 12,639,654,459.28 : x
2. Step 2: Convert to fraction form
   5,899,113,253.69/12,639,654,459.28 = 12,639,654,459.28/x
3. Step 3: Cross multiply
   5,899,113,253.69x = 12,639,654,459.28 × 12,639,654,459.28
4. Step 4: Simplify right side
   5,899,113,253.69x = 159,760,864,850,022,072,320
5. Step 5: Solve for x
   x = 159,760,864,850,022,072,320/5,899,113,253.69
6. Step 6: Final answer
   x = 27,082,183,029.82