Finding the Third Proportional to 163,066.50 and 225,321

Step by Step Solution

1. Step 1: Write the proportion equation
   163,066.50 : 225,321 = 225,321 : x
2. Step 2: Convert to fraction form
   163,066.50/225,321 = 225,321/x
3. Step 3: Cross multiply
   163,066.50x = 225,321 × 225,321
4. Step 4: Simplify right side
   163,066.50x = 50,769,553,041
5. Step 5: Solve for x
   x = 50,769,553,041/163,066.50
6. Step 6: Final answer
   x = 311,342.63