Finding the Third Proportional to 109,134 and 238,558

Step by Step Solution

1. Step 1: Write the proportion equation
   109,134 : 238,558 = 238,558 : x
2. Step 2: Convert to fraction form
   109,134/238,558 = 238,558/x
3. Step 3: Cross multiply
   109,134x = 238,558 × 238,558
4. Step 4: Simplify right side
   109,134x = 56,909,919,364
5. Step 5: Solve for x
   x = 56,909,919,364/109,134
6. Step 6: Final answer
   x = 521,468.28