Finding the Third Proportional to 302,310 and 451,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,310 : 451,885.50 = 451,885.50 : x
2. Step 2: Convert to fraction form
   302,310/451,885.50 = 451,885.50/x
3. Step 3: Cross multiply
   302,310x = 451,885.50 × 451,885.50
4. Step 4: Simplify right side
   302,310x = 204,200,505,110.25
5. Step 5: Solve for x
   x = 204,200,505,110.25/302,310
6. Step 6: Final answer
   x = 675,467.25