Finding the Third Proportional to 49,218.75 and 105,429.38

Step by Step Solution

1. Step 1: Write the proportion equation
   49,218.75 : 105,429.38 = 105,429.38 : x
2. Step 2: Convert to fraction form
   49,218.75/105,429.38 = 105,429.38/x
3. Step 3: Cross multiply
   49,218.75x = 105,429.38 × 105,429.38
4. Step 4: Simplify right side
   49,218.75x = 11,115,353,112.89
5. Step 5: Solve for x
   x = 11,115,353,112.89/49,218.75
6. Step 6: Final answer
   x = 225,835.75