Finding the Third Proportional to 213,097.50 and 330,852

Step by Step Solution

1. Step 1: Write the proportion equation
   213,097.50 : 330,852 = 330,852 : x
2. Step 2: Convert to fraction form
   213,097.50/330,852 = 330,852/x
3. Step 3: Cross multiply
   213,097.50x = 330,852 × 330,852
4. Step 4: Simplify right side
   213,097.50x = 109,463,045,904
5. Step 5: Solve for x
   x = 109,463,045,904/213,097.50
6. Step 6: Final answer
   x = 513,675.88