Finding the Third Proportional to 57,066 and 89,054

Step by Step Solution

1. Step 1: Write the proportion equation
   57,066 : 89,054 = 89,054 : x
2. Step 2: Convert to fraction form
   57,066/89,054 = 89,054/x
3. Step 3: Cross multiply
   57,066x = 89,054 × 89,054
4. Step 4: Simplify right side
   57,066x = 7,930,614,916
5. Step 5: Solve for x
   x = 7,930,614,916/57,066
6. Step 6: Final answer
   x = 138,972.68