Finding the Third Proportional to 109,479 and 236,949

Step by Step Solution

1. Step 1: Write the proportion equation
   109,479 : 236,949 = 236,949 : x
2. Step 2: Convert to fraction form
   109,479/236,949 = 236,949/x
3. Step 3: Cross multiply
   109,479x = 236,949 × 236,949
4. Step 4: Simplify right side
   109,479x = 56,144,828,601
5. Step 5: Solve for x
   x = 56,144,828,601/109,479
6. Step 6: Final answer
   x = 512,836.51