Finding the Third Proportional to 113,688 and 245,472

Step by Step Solution

1. Step 1: Write the proportion equation
   113,688 : 245,472 = 245,472 : x
2. Step 2: Convert to fraction form
   113,688/245,472 = 245,472/x
3. Step 3: Cross multiply
   113,688x = 245,472 × 245,472
4. Step 4: Simplify right side
   113,688x = 60,256,502,784
5. Step 5: Solve for x
   x = 60,256,502,784/113,688
6. Step 6: Final answer
   x = 530,016.39