Finding the Third Proportional to 59,588 and 87,434

Step by Step Solution

1. Step 1: Write the proportion equation
   59,588 : 87,434 = 87,434 : x
2. Step 2: Convert to fraction form
   59,588/87,434 = 87,434/x
3. Step 3: Cross multiply
   59,588x = 87,434 × 87,434
4. Step 4: Simplify right side
   59,588x = 7,644,704,356
5. Step 5: Solve for x
   x = 7,644,704,356/59,588
6. Step 6: Final answer
   x = 128,292.68