Finding the Third Proportional to 59,653.69 and 128,647.69

Step by Step Solution

1. Step 1: Write the proportion equation
   59,653.69 : 128,647.69 = 128,647.69 : x
2. Step 2: Convert to fraction form
   59,653.69/128,647.69 = 128,647.69/x
3. Step 3: Cross multiply
   59,653.69x = 128,647.69 × 128,647.69
4. Step 4: Simplify right side
   59,653.69x = 16,550,227,499.10
5. Step 5: Solve for x
   x = 16,550,227,499.10/59,653.69
6. Step 6: Final answer
   x = 277,438.47