Finding the Third Proportional to 60,806 and 132,790

Step by Step Solution

1. Step 1: Write the proportion equation
   60,806 : 132,790 = 132,790 : x
2. Step 2: Convert to fraction form
   60,806/132,790 = 132,790/x
3. Step 3: Cross multiply
   60,806x = 132,790 × 132,790
4. Step 4: Simplify right side
   60,806x = 17,633,184,100
5. Step 5: Solve for x
   x = 17,633,184,100/60,806
6. Step 6: Final answer
   x = 289,990.86