Finding the Third Proportional to 51,919.50 and 113,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,919.50 : 113,665.50 = 113,665.50 : x
2. Step 2: Convert to fraction form
   51,919.50/113,665.50 = 113,665.50/x
3. Step 3: Cross multiply
   51,919.50x = 113,665.50 × 113,665.50
4. Step 4: Simplify right side
   51,919.50x = 12,919,845,890.25
5. Step 5: Solve for x
   x = 12,919,845,890.25/51,919.50
6. Step 6: Final answer
   x = 248,843.80