Finding the Third Proportional to 225,615 and 501,661.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225,615 : 501,661.50 = 501,661.50 : x
2. Step 2: Convert to fraction form
   225,615/501,661.50 = 501,661.50/x
3. Step 3: Cross multiply
   225,615x = 501,661.50 × 501,661.50
4. Step 4: Simplify right side
   225,615x = 251,664,260,582.25
5. Step 5: Solve for x
   x = 251,664,260,582.25/225,615
6. Step 6: Final answer
   x = 1,115,458.90