Finding the Third Proportional to 107,345.25 and 231,434.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,345.25 : 231,434.72 = 231,434.72 : x
2. Step 2: Convert to fraction form
   107,345.25/231,434.72 = 231,434.72/x
3. Step 3: Cross multiply
   107,345.25x = 231,434.72 × 231,434.72
4. Step 4: Simplify right side
   107,345.25x = 53,562,029,042.89
5. Step 5: Solve for x
   x = 53,562,029,042.89/107,345.25
6. Step 6: Final answer
   x = 498,969.72