Finding the Third Proportional to 59,058 and 89,680

Step by Step Solution

1. Step 1: Write the proportion equation
   59,058 : 89,680 = 89,680 : x
2. Step 2: Convert to fraction form
   59,058/89,680 = 89,680/x
3. Step 3: Cross multiply
   59,058x = 89,680 × 89,680
4. Step 4: Simplify right side
   59,058x = 8,042,502,400
5. Step 5: Solve for x
   x = 8,042,502,400/59,058
6. Step 6: Final answer
   x = 136,179.73