Finding the Third Proportional to 90,864 and 137,936

Step by Step Solution

1. Step 1: Write the proportion equation
   90,864 : 137,936 = 137,936 : x
2. Step 2: Convert to fraction form
   90,864/137,936 = 137,936/x
3. Step 3: Cross multiply
   90,864x = 137,936 × 137,936
4. Step 4: Simplify right side
   90,864x = 19,026,340,096
5. Step 5: Solve for x
   x = 19,026,340,096/90,864
6. Step 6: Final answer
   x = 209,393.60