Finding the Third Proportional to 109,618 and 236,156

Step by Step Solution

1. Step 1: Write the proportion equation
   109,618 : 236,156 = 236,156 : x
2. Step 2: Convert to fraction form
   109,618/236,156 = 236,156/x
3. Step 3: Cross multiply
   109,618x = 236,156 × 236,156
4. Step 4: Simplify right side
   109,618x = 55,769,656,336
5. Step 5: Solve for x
   x = 55,769,656,336/109,618
6. Step 6: Final answer
   x = 508,763.67