Finding the Third Proportional to 88,300 and 132,815

Step by Step Solution

1. Step 1: Write the proportion equation
   88,300 : 132,815 = 132,815 : x
2. Step 2: Convert to fraction form
   88,300/132,815 = 132,815/x
3. Step 3: Cross multiply
   88,300x = 132,815 × 132,815
4. Step 4: Simplify right side
   88,300x = 17,639,824,225
5. Step 5: Solve for x
   x = 17,639,824,225/88,300
6. Step 6: Final answer
   x = 199,771.51