Finding the Third Proportional to 57,674 and 85,174

Step by Step Solution

1. Step 1: Write the proportion equation
   57,674 : 85,174 = 85,174 : x
2. Step 2: Convert to fraction form
   57,674/85,174 = 85,174/x
3. Step 3: Cross multiply
   57,674x = 85,174 × 85,174
4. Step 4: Simplify right side
   57,674x = 7,254,610,276
5. Step 5: Solve for x
   x = 7,254,610,276/57,674
6. Step 6: Final answer
   x = 125,786.49