Finding the Third Proportional to 235,404 and 355,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   235,404 : 355,315.50 = 355,315.50 : x
2. Step 2: Convert to fraction form
   235,404/355,315.50 = 355,315.50/x
3. Step 3: Cross multiply
   235,404x = 355,315.50 × 355,315.50
4. Step 4: Simplify right side
   235,404x = 126,249,104,540.25
5. Step 5: Solve for x
   x = 126,249,104,540.25/235,404
6. Step 6: Final answer
   x = 536,308.24