Finding the Third Proportional to 12,842,372,259 and 19,647,391,650

Step by Step Solution

1. Step 1: Write the proportion equation
   12,842,372,259 : 19,647,391,650 = 19,647,391,650 : x
2. Step 2: Convert to fraction form
   12,842,372,259/19,647,391,650 = 19,647,391,650/x
3. Step 3: Cross multiply
   12,842,372,259x = 19,647,391,650 × 19,647,391,650
4. Step 4: Simplify right side
   12,842,372,259x = 386,019,998,648,489,738,240
5. Step 5: Solve for x
   x = 386,019,998,648,489,738,240/12,842,372,259
6. Step 6: Final answer
   x = 30,058,309,388.90