Finding the Third Proportional to 229,857.75 and 345,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   229,857.75 : 345,100.50 = 345,100.50 : x
2. Step 2: Convert to fraction form
   229,857.75/345,100.50 = 345,100.50/x
3. Step 3: Cross multiply
   229,857.75x = 345,100.50 × 345,100.50
4. Step 4: Simplify right side
   229,857.75x = 119,094,355,100.25
5. Step 5: Solve for x
   x = 119,094,355,100.25/229,857.75
6. Step 6: Final answer
   x = 518,121.99