Finding the Third Proportional to 51,148.13 and 111,589.31

Step by Step Solution

1. Step 1: Write the proportion equation
   51,148.13 : 111,589.31 = 111,589.31 : x
2. Step 2: Convert to fraction form
   51,148.13/111,589.31 = 111,589.31/x
3. Step 3: Cross multiply
   51,148.13x = 111,589.31 × 111,589.31
4. Step 4: Simplify right side
   51,148.13x = 12,452,174,664.22
5. Step 5: Solve for x
   x = 12,452,174,664.22/51,148.13
6. Step 6: Final answer
   x = 243,453.20