Finding the Third Proportional to 67,086 and 146,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,086 : 146,611.50 = 146,611.50 : x
2. Step 2: Convert to fraction form
   67,086/146,611.50 = 146,611.50/x
3. Step 3: Cross multiply
   67,086x = 146,611.50 × 146,611.50
4. Step 4: Simplify right side
   67,086x = 21,494,931,932.25
5. Step 5: Solve for x
   x = 21,494,931,932.25/67,086
6. Step 6: Final answer
   x = 320,408.61