Finding the Third Proportional to 67,384 and 145,912

Step by Step Solution

1. Step 1: Write the proportion equation
   67,384 : 145,912 = 145,912 : x
2. Step 2: Convert to fraction form
   67,384/145,912 = 145,912/x
3. Step 3: Cross multiply
   67,384x = 145,912 × 145,912
4. Step 4: Simplify right side
   67,384x = 21,290,311,744
5. Step 5: Solve for x
   x = 21,290,311,744/67,384
6. Step 6: Final answer
   x = 315,955.00