Finding the Third Proportional to 59,118 and 89,290

Step by Step Solution

1. Step 1: Write the proportion equation
   59,118 : 89,290 = 89,290 : x
2. Step 2: Convert to fraction form
   59,118/89,290 = 89,290/x
3. Step 3: Cross multiply
   59,118x = 89,290 × 89,290
4. Step 4: Simplify right side
   59,118x = 7,972,704,100
5. Step 5: Solve for x
   x = 7,972,704,100/59,118
6. Step 6: Final answer
   x = 134,860.86