Finding the Third Proportional to 102,405.94 and 222,786.28

Step by Step Solution

1. Step 1: Write the proportion equation
   102,405.94 : 222,786.28 = 222,786.28 : x
2. Step 2: Convert to fraction form
   102,405.94/222,786.28 = 222,786.28/x
3. Step 3: Cross multiply
   102,405.94x = 222,786.28 × 222,786.28
4. Step 4: Simplify right side
   102,405.94x = 49,633,727,113.20
5. Step 5: Solve for x
   x = 49,633,727,113.20/102,405.94
6. Step 6: Final answer
   x = 484,676.26