Finding the Third Proportional to 51,818.50 and 80,018

Step by Step Solution

1. Step 1: Write the proportion equation
   51,818.50 : 80,018 = 80,018 : x
2. Step 2: Convert to fraction form
   51,818.50/80,018 = 80,018/x
3. Step 3: Cross multiply
   51,818.50x = 80,018 × 80,018
4. Step 4: Simplify right side
   51,818.50x = 6,402,880,324
5. Step 5: Solve for x
   x = 6,402,880,324/51,818.50
6. Step 6: Final answer
   x = 123,563.60