Finding the Third Proportional to 67,717 and 145,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,717 : 145,840.50 = 145,840.50 : x
2. Step 2: Convert to fraction form
   67,717/145,840.50 = 145,840.50/x
3. Step 3: Cross multiply
   67,717x = 145,840.50 × 145,840.50
4. Step 4: Simplify right side
   67,717x = 21,269,451,440.25
5. Step 5: Solve for x
   x = 21,269,451,440.25/67,717
6. Step 6: Final answer
   x = 314,093.23