Finding the Third Proportional to 302,416.50 and 446,730

Step by Step Solution

1. Step 1: Write the proportion equation
   302,416.50 : 446,730 = 446,730 : x
2. Step 2: Convert to fraction form
   302,416.50/446,730 = 446,730/x
3. Step 3: Cross multiply
   302,416.50x = 446,730 × 446,730
4. Step 4: Simplify right side
   302,416.50x = 199,567,692,900
5. Step 5: Solve for x
   x = 199,567,692,900/302,416.50
6. Step 6: Final answer
   x = 659,910.07