Finding the Third Proportional to 59,111.25 and 128,052.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,111.25 : 128,052.75 = 128,052.75 : x
2. Step 2: Convert to fraction form
   59,111.25/128,052.75 = 128,052.75/x
3. Step 3: Cross multiply
   59,111.25x = 128,052.75 × 128,052.75
4. Step 4: Simplify right side
   59,111.25x = 16,397,506,782.56
5. Step 5: Solve for x
   x = 16,397,506,782.56/59,111.25
6. Step 6: Final answer
   x = 277,400.78