Finding the Third Proportional to 64,968 and 142,086

Step by Step Solution

1. Step 1: Write the proportion equation
   64,968 : 142,086 = 142,086 : x
2. Step 2: Convert to fraction form
   64,968/142,086 = 142,086/x
3. Step 3: Cross multiply
   64,968x = 142,086 × 142,086
4. Step 4: Simplify right side
   64,968x = 20,188,431,396
5. Step 5: Solve for x
   x = 20,188,431,396/64,968
6. Step 6: Final answer
   x = 310,744.23