Finding the Third Proportional to 55,591.88 and 122,256

Step by Step Solution

1. Step 1: Write the proportion equation
   55,591.88 : 122,256 = 122,256 : x
2. Step 2: Convert to fraction form
   55,591.88/122,256 = 122,256/x
3. Step 3: Cross multiply
   55,591.88x = 122,256 × 122,256
4. Step 4: Simplify right side
   55,591.88x = 14,946,529,536
5. Step 5: Solve for x
   x = 14,946,529,536/55,591.88
6. Step 6: Final answer
   x = 268,861.76