Finding the Third Proportional to 51,040 and 72,589

Step by Step Solution

1. Step 1: Write the proportion equation
   51,040 : 72,589 = 72,589 : x
2. Step 2: Convert to fraction form
   51,040/72,589 = 72,589/x
3. Step 3: Cross multiply
   51,040x = 72,589 × 72,589
4. Step 4: Simplify right side
   51,040x = 5,269,162,921
5. Step 5: Solve for x
   x = 5,269,162,921/51,040
6. Step 6: Final answer
   x = 103,235.95