Finding the Third Proportional to 229,872 and 493,440

Step by Step Solution

1. Step 1: Write the proportion equation
   229,872 : 493,440 = 493,440 : x
2. Step 2: Convert to fraction form
   229,872/493,440 = 493,440/x
3. Step 3: Cross multiply
   229,872x = 493,440 × 493,440
4. Step 4: Simplify right side
   229,872x = 243,483,033,600
5. Step 5: Solve for x
   x = 243,483,033,600/229,872
6. Step 6: Final answer
   x = 1,059,211.36