Finding the Third Proportional to 229,621.50 and 503,631

Step by Step Solution

1. Step 1: Write the proportion equation
   229,621.50 : 503,631 = 503,631 : x
2. Step 2: Convert to fraction form
   229,621.50/503,631 = 503,631/x
3. Step 3: Cross multiply
   229,621.50x = 503,631 × 503,631
4. Step 4: Simplify right side
   229,621.50x = 253,644,184,161
5. Step 5: Solve for x
   x = 253,644,184,161/229,621.50
6. Step 6: Final answer
   x = 1,104,618.62