Finding the Third Proportional to 59,318 and 128,892

Step by Step Solution

1. Step 1: Write the proportion equation
   59,318 : 128,892 = 128,892 : x
2. Step 2: Convert to fraction form
   59,318/128,892 = 128,892/x
3. Step 3: Cross multiply
   59,318x = 128,892 × 128,892
4. Step 4: Simplify right side
   59,318x = 16,613,147,664
5. Step 5: Solve for x
   x = 16,613,147,664/59,318
6. Step 6: Final answer
   x = 280,069.25