Finding the Third Proportional to 67,257 and 145,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,257 : 145,651.50 = 145,651.50 : x
2. Step 2: Convert to fraction form
   67,257/145,651.50 = 145,651.50/x
3. Step 3: Cross multiply
   67,257x = 145,651.50 × 145,651.50
4. Step 4: Simplify right side
   67,257x = 21,214,359,452.25
5. Step 5: Solve for x
   x = 21,214,359,452.25/67,257
6. Step 6: Final answer
   x = 315,422.33