Finding the Third Proportional to 59,128 and 88,259

Step by Step Solution

1. Step 1: Write the proportion equation
   59,128 : 88,259 = 88,259 : x
2. Step 2: Convert to fraction form
   59,128/88,259 = 88,259/x
3. Step 3: Cross multiply
   59,128x = 88,259 × 88,259
4. Step 4: Simplify right side
   59,128x = 7,789,651,081
5. Step 5: Solve for x
   x = 7,789,651,081/59,128
6. Step 6: Final answer
   x = 131,742.17