Finding the Third Proportional to 109,646.16 and 239,123.39

Step by Step Solution

1. Step 1: Write the proportion equation
   109,646.16 : 239,123.39 = 239,123.39 : x
2. Step 2: Convert to fraction form
   109,646.16/239,123.39 = 239,123.39/x
3. Step 3: Cross multiply
   109,646.16x = 239,123.39 × 239,123.39
4. Step 4: Simplify right side
   109,646.16x = 57,179,995,944.00
5. Step 5: Solve for x
   x = 57,179,995,944.00/109,646.16
6. Step 6: Final answer
   x = 521,495.67