Finding the Third Proportional to 89,044 and 138,672

Step by Step Solution

1. Step 1: Write the proportion equation
   89,044 : 138,672 = 138,672 : x
2. Step 2: Convert to fraction form
   89,044/138,672 = 138,672/x
3. Step 3: Cross multiply
   89,044x = 138,672 × 138,672
4. Step 4: Simplify right side
   89,044x = 19,229,923,584
5. Step 5: Solve for x
   x = 19,229,923,584/89,044
6. Step 6: Final answer
   x = 215,959.79