Finding the Third Proportional to 119,824.50 and 258,330

Step by Step Solution

1. Step 1: Write the proportion equation
   119,824.50 : 258,330 = 258,330 : x
2. Step 2: Convert to fraction form
   119,824.50/258,330 = 258,330/x
3. Step 3: Cross multiply
   119,824.50x = 258,330 × 258,330
4. Step 4: Simplify right side
   119,824.50x = 66,734,388,900
5. Step 5: Solve for x
   x = 66,734,388,900/119,824.50
6. Step 6: Final answer
   x = 556,934.42