Finding the Third Proportional to 59,397 and 128,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,397 : 128,080.50 = 128,080.50 : x
2. Step 2: Convert to fraction form
   59,397/128,080.50 = 128,080.50/x
3. Step 3: Cross multiply
   59,397x = 128,080.50 × 128,080.50
4. Step 4: Simplify right side
   59,397x = 16,404,614,480.25
5. Step 5: Solve for x
   x = 16,404,614,480.25/59,397
6. Step 6: Final answer
   x = 276,185.91