Finding the Third Proportional to 109,674 and 239,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,674 : 239,422.50 = 239,422.50 : x
2. Step 2: Convert to fraction form
   109,674/239,422.50 = 239,422.50/x
3. Step 3: Cross multiply
   109,674x = 239,422.50 × 239,422.50
4. Step 4: Simplify right side
   109,674x = 57,323,133,506.25
5. Step 5: Solve for x
   x = 57,323,133,506.25/109,674
6. Step 6: Final answer
   x = 522,668.39