Finding the Third Proportional to 60,733.50 and 128,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,733.50 : 128,068.50 = 128,068.50 : x
2. Step 2: Convert to fraction form
   60,733.50/128,068.50 = 128,068.50/x
3. Step 3: Cross multiply
   60,733.50x = 128,068.50 × 128,068.50
4. Step 4: Simplify right side
   60,733.50x = 16,401,540,692.25
5. Step 5: Solve for x
   x = 16,401,540,692.25/60,733.50
6. Step 6: Final answer
   x = 270,057.56