Finding the Third Proportional to 65,632 and 143,978

Step by Step Solution

1. Step 1: Write the proportion equation
   65,632 : 143,978 = 143,978 : x
2. Step 2: Convert to fraction form
   65,632/143,978 = 143,978/x
3. Step 3: Cross multiply
   65,632x = 143,978 × 143,978
4. Step 4: Simplify right side
   65,632x = 20,729,664,484
5. Step 5: Solve for x
   x = 20,729,664,484/65,632
6. Step 6: Final answer
   x = 315,846.91