Finding the Third Proportional to 59,362.50 and 128,088

Step by Step Solution

1. Step 1: Write the proportion equation
   59,362.50 : 128,088 = 128,088 : x
2. Step 2: Convert to fraction form
   59,362.50/128,088 = 128,088/x
3. Step 3: Cross multiply
   59,362.50x = 128,088 × 128,088
4. Step 4: Simplify right side
   59,362.50x = 16,406,535,744
5. Step 5: Solve for x
   x = 16,406,535,744/59,362.50
6. Step 6: Final answer
   x = 276,378.79