Finding the Third Proportional to 112,342 and 238,538

Step by Step Solution

1. Step 1: Write the proportion equation
   112,342 : 238,538 = 238,538 : x
2. Step 2: Convert to fraction form
   112,342/238,538 = 238,538/x
3. Step 3: Cross multiply
   112,342x = 238,538 × 238,538
4. Step 4: Simplify right side
   112,342x = 56,900,377,444
5. Step 5: Solve for x
   x = 56,900,377,444/112,342
6. Step 6: Final answer
   x = 506,492.47