Finding the Third Proportional to 55,513.50 and 122,100

Step by Step Solution

1. Step 1: Write the proportion equation
   55,513.50 : 122,100 = 122,100 : x
2. Step 2: Convert to fraction form
   55,513.50/122,100 = 122,100/x
3. Step 3: Cross multiply
   55,513.50x = 122,100 × 122,100
4. Step 4: Simplify right side
   55,513.50x = 14,908,410,000
5. Step 5: Solve for x
   x = 14,908,410,000/55,513.50
6. Step 6: Final answer
   x = 268,554.68