Finding the Third Proportional to 51,673.50 and 73,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,673.50 : 73,138.50 = 73,138.50 : x
2. Step 2: Convert to fraction form
   51,673.50/73,138.50 = 73,138.50/x
3. Step 3: Cross multiply
   51,673.50x = 73,138.50 × 73,138.50
4. Step 4: Simplify right side
   51,673.50x = 5,349,240,182.25
5. Step 5: Solve for x
   x = 5,349,240,182.25/51,673.50
6. Step 6: Final answer
   x = 103,519.99