Finding the Third Proportional to 65,719 and 143,600

Step by Step Solution

1. Step 1: Write the proportion equation
   65,719 : 143,600 = 143,600 : x
2. Step 2: Convert to fraction form
   65,719/143,600 = 143,600/x
3. Step 3: Cross multiply
   65,719x = 143,600 × 143,600
4. Step 4: Simplify right side
   65,719x = 20,620,960,000
5. Step 5: Solve for x
   x = 20,620,960,000/65,719
6. Step 6: Final answer
   x = 313,774.71