Finding the Third Proportional to 67,566 and 105,990

Step by Step Solution

1. Step 1: Write the proportion equation
   67,566 : 105,990 = 105,990 : x
2. Step 2: Convert to fraction form
   67,566/105,990 = 105,990/x
3. Step 3: Cross multiply
   67,566x = 105,990 × 105,990
4. Step 4: Simplify right side
   67,566x = 11,233,880,100
5. Step 5: Solve for x
   x = 11,233,880,100/67,566
6. Step 6: Final answer
   x = 166,265.28