Finding the Third Proportional to 88,656 and 136,264.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,656 : 136,264.50 = 136,264.50 : x
2. Step 2: Convert to fraction form
   88,656/136,264.50 = 136,264.50/x
3. Step 3: Cross multiply
   88,656x = 136,264.50 × 136,264.50
4. Step 4: Simplify right side
   88,656x = 18,568,013,960.25
5. Step 5: Solve for x
   x = 18,568,013,960.25/88,656
6. Step 6: Final answer
   x = 209,438.89