Finding the Third Proportional to 234,420 and 361,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   234,420 : 361,357.50 = 361,357.50 : x
2. Step 2: Convert to fraction form
   234,420/361,357.50 = 361,357.50/x
3. Step 3: Cross multiply
   234,420x = 361,357.50 × 361,357.50
4. Step 4: Simplify right side
   234,420x = 130,579,242,806.25
5. Step 5: Solve for x
   x = 130,579,242,806.25/234,420
6. Step 6: Final answer
   x = 557,031.15