Finding the Third Proportional to 67,674 and 145,716

Step by Step Solution

1. Step 1: Write the proportion equation
   67,674 : 145,716 = 145,716 : x
2. Step 2: Convert to fraction form
   67,674/145,716 = 145,716/x
3. Step 3: Cross multiply
   67,674x = 145,716 × 145,716
4. Step 4: Simplify right side
   67,674x = 21,233,152,656
5. Step 5: Solve for x
   x = 21,233,152,656/67,674
6. Step 6: Final answer
   x = 313,756.43