Finding the Third Proportional to 60,842 and 89,161

Step by Step Solution

1. Step 1: Write the proportion equation
   60,842 : 89,161 = 89,161 : x
2. Step 2: Convert to fraction form
   60,842/89,161 = 89,161/x
3. Step 3: Cross multiply
   60,842x = 89,161 × 89,161
4. Step 4: Simplify right side
   60,842x = 7,949,683,921
5. Step 5: Solve for x
   x = 7,949,683,921/60,842
6. Step 6: Final answer
   x = 130,661.12