Finding the Third Proportional to 65,246 and 143,980

Step by Step Solution

1. Step 1: Write the proportion equation
   65,246 : 143,980 = 143,980 : x
2. Step 2: Convert to fraction form
   65,246/143,980 = 143,980/x
3. Step 3: Cross multiply
   65,246x = 143,980 × 143,980
4. Step 4: Simplify right side
   65,246x = 20,730,240,400
5. Step 5: Solve for x
   x = 20,730,240,400/65,246
6. Step 6: Final answer
   x = 317,724.31