Finding the Third Proportional to 65,642 and 144,404

Step by Step Solution

1. Step 1: Write the proportion equation
   65,642 : 144,404 = 144,404 : x
2. Step 2: Convert to fraction form
   65,642/144,404 = 144,404/x
3. Step 3: Cross multiply
   65,642x = 144,404 × 144,404
4. Step 4: Simplify right side
   65,642x = 20,852,515,216
5. Step 5: Solve for x
   x = 20,852,515,216/65,642
6. Step 6: Final answer
   x = 317,670.32