Finding the Third Proportional to 122,866.50 and 268,818

Step by Step Solution

1. Step 1: Write the proportion equation
   122,866.50 : 268,818 = 268,818 : x
2. Step 2: Convert to fraction form
   122,866.50/268,818 = 268,818/x
3. Step 3: Cross multiply
   122,866.50x = 268,818 × 268,818
4. Step 4: Simplify right side
   122,866.50x = 72,263,117,124
5. Step 5: Solve for x
   x = 72,263,117,124/122,866.50
6. Step 6: Final answer
   x = 588,143.37