Finding the Third Proportional to 64,404 and 140,262

Step by Step Solution

1. Step 1: Write the proportion equation
   64,404 : 140,262 = 140,262 : x
2. Step 2: Convert to fraction form
   64,404/140,262 = 140,262/x
3. Step 3: Cross multiply
   64,404x = 140,262 × 140,262
4. Step 4: Simplify right side
   64,404x = 19,673,428,644
5. Step 5: Solve for x
   x = 19,673,428,644/64,404
6. Step 6: Final answer
   x = 305,469.05