Finding the Third Proportional to 145,022 and 311,466.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,022 : 311,466.50 = 311,466.50 : x
2. Step 2: Convert to fraction form
   145,022/311,466.50 = 311,466.50/x
3. Step 3: Cross multiply
   145,022x = 311,466.50 × 311,466.50
4. Step 4: Simplify right side
   145,022x = 97,011,380,622.25
5. Step 5: Solve for x
   x = 97,011,380,622.25/145,022
6. Step 6: Final answer
   x = 668,942.51