Finding the Third Proportional to 89,720 and 132,842

Step by Step Solution

1. Step 1: Write the proportion equation
   89,720 : 132,842 = 132,842 : x
2. Step 2: Convert to fraction form
   89,720/132,842 = 132,842/x
3. Step 3: Cross multiply
   89,720x = 132,842 × 132,842
4. Step 4: Simplify right side
   89,720x = 17,646,996,964
5. Step 5: Solve for x
   x = 17,646,996,964/89,720
6. Step 6: Final answer
   x = 196,689.67