Finding the Third Proportional to 60,019.50 and 128,935

Step by Step Solution

1. Step 1: Write the proportion equation
   60,019.50 : 128,935 = 128,935 : x
2. Step 2: Convert to fraction form
   60,019.50/128,935 = 128,935/x
3. Step 3: Cross multiply
   60,019.50x = 128,935 × 128,935
4. Step 4: Simplify right side
   60,019.50x = 16,624,234,225
5. Step 5: Solve for x
   x = 16,624,234,225/60,019.50
6. Step 6: Final answer
   x = 276,980.55