Finding the Third Proportional to 12,429,342,144 and 26,631,571,456

Step by Step Solution

1. Step 1: Write the proportion equation
   12,429,342,144 : 26,631,571,456 = 26,631,571,456 : x
2. Step 2: Convert to fraction form
   12,429,342,144/26,631,571,456 = 26,631,571,456/x
3. Step 3: Cross multiply
   12,429,342,144x = 26,631,571,456 × 26,631,571,456
4. Step 4: Simplify right side
   12,429,342,144x = 709,240,598,216,033,959,936
5. Step 5: Solve for x
   x = 709,240,598,216,033,959,936/12,429,342,144
6. Step 6: Final answer
   x = 57,061,796,996.10