Finding the Third Proportional to 65,812 and 143,304

Step by Step Solution

1. Step 1: Write the proportion equation
   65,812 : 143,304 = 143,304 : x
2. Step 2: Convert to fraction form
   65,812/143,304 = 143,304/x
3. Step 3: Cross multiply
   65,812x = 143,304 × 143,304
4. Step 4: Simplify right side
   65,812x = 20,536,036,416
5. Step 5: Solve for x
   x = 20,536,036,416/65,812
6. Step 6: Final answer
   x = 312,040.91