Finding the Third Proportional to 12,479,834,642 and 25,395,518,116

Step by Step Solution

1. Step 1: Write the proportion equation
   12,479,834,642 : 25,395,518,116 = 25,395,518,116 : x
2. Step 2: Convert to fraction form
   12,479,834,642/25,395,518,116 = 25,395,518,116/x
3. Step 3: Cross multiply
   12,479,834,642x = 25,395,518,116 × 25,395,518,116
4. Step 4: Simplify right side
   12,479,834,642x = 644,932,340,380,084,207,616
5. Step 5: Solve for x
   x = 644,932,340,380,084,207,616/12,479,834,642
6. Step 6: Final answer
   x = 51,677,955,588.42