Finding the Third Proportional to 302,851.50 and 441,132

Step by Step Solution

1. Step 1: Write the proportion equation
   302,851.50 : 441,132 = 441,132 : x
2. Step 2: Convert to fraction form
   302,851.50/441,132 = 441,132/x
3. Step 3: Cross multiply
   302,851.50x = 441,132 × 441,132
4. Step 4: Simplify right side
   302,851.50x = 194,597,441,424
5. Step 5: Solve for x
   x = 194,597,441,424/302,851.50
6. Step 6: Final answer
   x = 642,550.69