Finding the Third Proportional to 67,666 and 145,700

Step by Step Solution

1. Step 1: Write the proportion equation
   67,666 : 145,700 = 145,700 : x
2. Step 2: Convert to fraction form
   67,666/145,700 = 145,700/x
3. Step 3: Cross multiply
   67,666x = 145,700 × 145,700
4. Step 4: Simplify right side
   67,666x = 21,228,490,000
5. Step 5: Solve for x
   x = 21,228,490,000/67,666
6. Step 6: Final answer
   x = 313,724.62