Finding the Third Proportional to 19,383,682,140 and 42,163,587,198

Step by Step Solution

1. Step 1: Write the proportion equation
   19,383,682,140 : 42,163,587,198 = 42,163,587,198 : x
2. Step 2: Convert to fraction form
   19,383,682,140/42,163,587,198 = 42,163,587,198/x
3. Step 3: Cross multiply
   19,383,682,140x = 42,163,587,198 × 42,163,587,198
4. Step 4: Simplify right side
   19,383,682,140x = 1,777,768,085,403,349,549,056
5. Step 5: Solve for x
   x = 1,777,768,085,403,349,549,056/19,383,682,140
6. Step 6: Final answer
   x = 91,714,673,845.93