Finding the Third Proportional to 155,786.63 and 222,778.69

Step by Step Solution

1. Step 1: Write the proportion equation
   155,786.63 : 222,778.69 = 222,778.69 : x
2. Step 2: Convert to fraction form
   155,786.63/222,778.69 = 222,778.69/x
3. Step 3: Cross multiply
   155,786.63x = 222,778.69 × 222,778.69
4. Step 4: Simplify right side
   155,786.63x = 49,630,343,604.22
5. Step 5: Solve for x
   x = 49,630,343,604.22/155,786.63
6. Step 6: Final answer
   x = 318,578.98