Finding the Third Proportional to 51,958.50 and 113,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,958.50 : 113,638.50 = 113,638.50 : x
2. Step 2: Convert to fraction form
   51,958.50/113,638.50 = 113,638.50/x
3. Step 3: Cross multiply
   51,958.50x = 113,638.50 × 113,638.50
4. Step 4: Simplify right side
   51,958.50x = 12,913,708,682.25
5. Step 5: Solve for x
   x = 12,913,708,682.25/51,958.50
6. Step 6: Final answer
   x = 248,538.90