Finding the Third Proportional to 2,621,831,328 and 5,617,630,665

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621,831,328 : 5,617,630,665 = 5,617,630,665 : x
2. Step 2: Convert to fraction form
   2,621,831,328/5,617,630,665 = 5,617,630,665/x
3. Step 3: Cross multiply
   2,621,831,328x = 5,617,630,665 × 5,617,630,665
4. Step 4: Simplify right side
   2,621,831,328x = 31,557,774,288,348,340,224
5. Step 5: Solve for x
   x = 31,557,774,288,348,340,224/2,621,831,328
6. Step 6: Final answer
   x = 12,036,538,716.78