Finding the Third Proportional to 109,572 and 238,866

Step by Step Solution

1. Step 1: Write the proportion equation
   109,572 : 238,866 = 238,866 : x
2. Step 2: Convert to fraction form
   109,572/238,866 = 238,866/x
3. Step 3: Cross multiply
   109,572x = 238,866 × 238,866
4. Step 4: Simplify right side
   109,572x = 57,056,965,956
5. Step 5: Solve for x
   x = 57,056,965,956/109,572
6. Step 6: Final answer
   x = 520,725.79