Finding the Third Proportional to 30,317 and 65,818

Step by Step Solution

1. Step 1: Write the proportion equation
   30,317 : 65,818 = 65,818 : x
2. Step 2: Convert to fraction form
   30,317/65,818 = 65,818/x
3. Step 3: Cross multiply
   30,317x = 65,818 × 65,818
4. Step 4: Simplify right side
   30,317x = 4,332,009,124
5. Step 5: Solve for x
   x = 4,332,009,124/30,317
6. Step 6: Final answer
   x = 142,890.43