Finding the Third Proportional to 67,485 and 145,338

Step by Step Solution

1. Step 1: Write the proportion equation
   67,485 : 145,338 = 145,338 : x
2. Step 2: Convert to fraction form
   67,485/145,338 = 145,338/x
3. Step 3: Cross multiply
   67,485x = 145,338 × 145,338
4. Step 4: Simplify right side
   67,485x = 21,123,134,244
5. Step 5: Solve for x
   x = 21,123,134,244/67,485
6. Step 6: Final answer
   x = 313,004.88