Finding the Third Proportional to 261,536.50 and 404,134

Step by Step Solution

1. Step 1: Write the proportion equation
   261,536.50 : 404,134 = 404,134 : x
2. Step 2: Convert to fraction form
   261,536.50/404,134 = 404,134/x
3. Step 3: Cross multiply
   261,536.50x = 404,134 × 404,134
4. Step 4: Simplify right side
   261,536.50x = 163,324,289,956
5. Step 5: Solve for x
   x = 163,324,289,956/261,536.50
6. Step 6: Final answer
   x = 624,479.91