Finding the Third Proportional to 89,109 and 121,054

Step by Step Solution

1. Step 1: Write the proportion equation
   89,109 : 121,054 = 121,054 : x
2. Step 2: Convert to fraction form
   89,109/121,054 = 121,054/x
3. Step 3: Cross multiply
   89,109x = 121,054 × 121,054
4. Step 4: Simplify right side
   89,109x = 14,654,070,916
5. Step 5: Solve for x
   x = 14,654,070,916/89,109
6. Step 6: Final answer
   x = 164,451.08