Finding the Third Proportional to 30,692.50 and 67,240

Step by Step Solution

1. Step 1: Write the proportion equation
   30,692.50 : 67,240 = 67,240 : x
2. Step 2: Convert to fraction form
   30,692.50/67,240 = 67,240/x
3. Step 3: Cross multiply
   30,692.50x = 67,240 × 67,240
4. Step 4: Simplify right side
   30,692.50x = 4,521,217,600
5. Step 5: Solve for x
   x = 4,521,217,600/30,692.50
6. Step 6: Final answer
   x = 147,306.92