Finding the Third Proportional to 109,440 and 238,848

Step by Step Solution

1. Step 1: Write the proportion equation
   109,440 : 238,848 = 238,848 : x
2. Step 2: Convert to fraction form
   109,440/238,848 = 238,848/x
3. Step 3: Cross multiply
   109,440x = 238,848 × 238,848
4. Step 4: Simplify right side
   109,440x = 57,048,367,104
5. Step 5: Solve for x
   x = 57,048,367,104/109,440
6. Step 6: Final answer
   x = 521,275.28