Finding the Third Proportional to 65,364 and 143,174

Step by Step Solution

1. Step 1: Write the proportion equation
   65,364 : 143,174 = 143,174 : x
2. Step 2: Convert to fraction form
   65,364/143,174 = 143,174/x
3. Step 3: Cross multiply
   65,364x = 143,174 × 143,174
4. Step 4: Simplify right side
   65,364x = 20,498,794,276
5. Step 5: Solve for x
   x = 20,498,794,276/65,364
6. Step 6: Final answer
   x = 313,609.85