Finding the Third Proportional to 59,115 and 89,286

Step by Step Solution

1. Step 1: Write the proportion equation
   59,115 : 89,286 = 89,286 : x
2. Step 2: Convert to fraction form
   59,115/89,286 = 89,286/x
3. Step 3: Cross multiply
   59,115x = 89,286 × 89,286
4. Step 4: Simplify right side
   59,115x = 7,971,989,796
5. Step 5: Solve for x
   x = 7,971,989,796/59,115
6. Step 6: Final answer
   x = 134,855.62