Finding the Third Proportional to 145,246 and 200,012

Step by Step Solution

1. Step 1: Write the proportion equation
   145,246 : 200,012 = 200,012 : x
2. Step 2: Convert to fraction form
   145,246/200,012 = 200,012/x
3. Step 3: Cross multiply
   145,246x = 200,012 × 200,012
4. Step 4: Simplify right side
   145,246x = 40,004,800,144
5. Step 5: Solve for x
   x = 40,004,800,144/145,246
6. Step 6: Final answer
   x = 275,427.90