Finding the Third Proportional to 2,621,831,330 and 5,617,630,669

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621,831,330 : 5,617,630,669 = 5,617,630,669 : x
2. Step 2: Convert to fraction form
   2,621,831,330/5,617,630,669 = 5,617,630,669/x
3. Step 3: Cross multiply
   2,621,831,330x = 5,617,630,669 × 5,617,630,669
4. Step 4: Simplify right side
   2,621,831,330x = 31,557,774,333,289,385,984
5. Step 5: Solve for x
   x = 31,557,774,333,289,385,984/2,621,831,330
6. Step 6: Final answer
   x = 12,036,538,724.74