Finding the Third Proportional to 88,918.50 and 136,338

Step by Step Solution

1. Step 1: Write the proportion equation
   88,918.50 : 136,338 = 136,338 : x
2. Step 2: Convert to fraction form
   88,918.50/136,338 = 136,338/x
3. Step 3: Cross multiply
   88,918.50x = 136,338 × 136,338
4. Step 4: Simplify right side
   88,918.50x = 18,588,050,244
5. Step 5: Solve for x
   x = 18,588,050,244/88,918.50
6. Step 6: Final answer
   x = 209,045.93