Finding the Third Proportional to 59,538.38 and 128,424.38

Step by Step Solution

1. Step 1: Write the proportion equation
   59,538.38 : 128,424.38 = 128,424.38 : x
2. Step 2: Convert to fraction form
   59,538.38/128,424.38 = 128,424.38/x
3. Step 3: Cross multiply
   59,538.38x = 128,424.38 × 128,424.38
4. Step 4: Simplify right side
   59,538.38x = 16,492,820,094.14
5. Step 5: Solve for x
   x = 16,492,820,094.14/59,538.38
6. Step 6: Final answer
   x = 277,011.59