Finding the Third Proportional to 215,928 and 337,968

Step by Step Solution

1. Step 1: Write the proportion equation
   215,928 : 337,968 = 337,968 : x
2. Step 2: Convert to fraction form
   215,928/337,968 = 337,968/x
3. Step 3: Cross multiply
   215,928x = 337,968 × 337,968
4. Step 4: Simplify right side
   215,928x = 114,222,369,024
5. Step 5: Solve for x
   x = 114,222,369,024/215,928
6. Step 6: Final answer
   x = 528,983.59