Finding the Third Proportional to 300,837 and 451,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   300,837 : 451,321.50 = 451,321.50 : x
2. Step 2: Convert to fraction form
   300,837/451,321.50 = 451,321.50/x
3. Step 3: Cross multiply
   300,837x = 451,321.50 × 451,321.50
4. Step 4: Simplify right side
   300,837x = 203,691,096,362.25
5. Step 5: Solve for x
   x = 203,691,096,362.25/300,837
6. Step 6: Final answer
   x = 677,081.26