Finding the Third Proportional to 113,778.56 and 247,617

Step by Step Solution

1. Step 1: Write the proportion equation
   113,778.56 : 247,617 = 247,617 : x
2. Step 2: Convert to fraction form
   113,778.56/247,617 = 247,617/x
3. Step 3: Cross multiply
   113,778.56x = 247,617 × 247,617
4. Step 4: Simplify right side
   113,778.56x = 61,314,178,689
5. Step 5: Solve for x
   x = 61,314,178,689/113,778.56
6. Step 6: Final answer
   x = 538,890.43