Finding the Third Proportional to 145,245 and 200,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,245 : 200,011.50 = 200,011.50 : x
2. Step 2: Convert to fraction form
   145,245/200,011.50 = 200,011.50/x
3. Step 3: Cross multiply
   145,245x = 200,011.50 × 200,011.50
4. Step 4: Simplify right side
   145,245x = 40,004,600,132.25
5. Step 5: Solve for x
   x = 40,004,600,132.25/145,245
6. Step 6: Final answer
   x = 275,428.41