Finding the Third Proportional to 88,890 and 137,601

Step by Step Solution

1. Step 1: Write the proportion equation
   88,890 : 137,601 = 137,601 : x
2. Step 2: Convert to fraction form
   88,890/137,601 = 137,601/x
3. Step 3: Cross multiply
   88,890x = 137,601 × 137,601
4. Step 4: Simplify right side
   88,890x = 18,934,035,201
5. Step 5: Solve for x
   x = 18,934,035,201/88,890
6. Step 6: Final answer
   x = 213,005.23