Finding the Third Proportional to 88,191 and 132,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,191 : 132,487.50 = 132,487.50 : x
2. Step 2: Convert to fraction form
   88,191/132,487.50 = 132,487.50/x
3. Step 3: Cross multiply
   88,191x = 132,487.50 × 132,487.50
4. Step 4: Simplify right side
   88,191x = 17,552,937,656.25
5. Step 5: Solve for x
   x = 17,552,937,656.25/88,191
6. Step 6: Final answer
   x = 199,033.21