Finding the Third Proportional to 2,144,691,684 and 4,628,129,256

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144,691,684 : 4,628,129,256 = 4,628,129,256 : x
2. Step 2: Convert to fraction form
   2,144,691,684/4,628,129,256 = 4,628,129,256/x
3. Step 3: Cross multiply
   2,144,691,684x = 4,628,129,256 × 4,628,129,256
4. Step 4: Simplify right side
   2,144,691,684x = 21,419,580,410,243,112,960
5. Step 5: Solve for x
   x = 21,419,580,410,243,112,960/2,144,691,684
6. Step 6: Final answer
   x = 9,987,253,911.62