Finding the Third Proportional to 88,662 and 132,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,662 : 132,991.50 = 132,991.50 : x
2. Step 2: Convert to fraction form
   88,662/132,991.50 = 132,991.50/x
3. Step 3: Cross multiply
   88,662x = 132,991.50 × 132,991.50
4. Step 4: Simplify right side
   88,662x = 17,686,739,072.25
5. Step 5: Solve for x
   x = 17,686,739,072.25/88,662
6. Step 6: Final answer
   x = 199,485.00