Finding the Third Proportional to 83,940 and 132,915

Step by Step Solution

1. Step 1: Write the proportion equation
   83,940 : 132,915 = 132,915 : x
2. Step 2: Convert to fraction form
   83,940/132,915 = 132,915/x
3. Step 3: Cross multiply
   83,940x = 132,915 × 132,915
4. Step 4: Simplify right side
   83,940x = 17,666,397,225
5. Step 5: Solve for x
   x = 17,666,397,225/83,940
6. Step 6: Final answer
   x = 210,464.58