Finding the Third Proportional to 145,429,144 and 311,013,678

Step by Step Solution

1. Step 1: Write the proportion equation
   145,429,144 : 311,013,678 = 311,013,678 : x
2. Step 2: Convert to fraction form
   145,429,144/311,013,678 = 311,013,678/x
3. Step 3: Cross multiply
   145,429,144x = 311,013,678 × 311,013,678
4. Step 4: Simplify right side
   145,429,144x = 96,729,507,903,087,680
5. Step 5: Solve for x
   x = 96,729,507,903,087,680/145,429,144
6. Step 6: Final answer
   x = 665,131,522.08