Finding the Third Proportional to 113,409.50 and 247,231

Step by Step Solution

1. Step 1: Write the proportion equation
   113,409.50 : 247,231 = 247,231 : x
2. Step 2: Convert to fraction form
   113,409.50/247,231 = 247,231/x
3. Step 3: Cross multiply
   113,409.50x = 247,231 × 247,231
4. Step 4: Simplify right side
   113,409.50x = 61,123,167,361
5. Step 5: Solve for x
   x = 61,123,167,361/113,409.50
6. Step 6: Final answer
   x = 538,959.85