Finding the Third Proportional to 229,788 and 491,139

Step by Step Solution

1. Step 1: Write the proportion equation
   229,788 : 491,139 = 491,139 : x
2. Step 2: Convert to fraction form
   229,788/491,139 = 491,139/x
3. Step 3: Cross multiply
   229,788x = 491,139 × 491,139
4. Step 4: Simplify right side
   229,788x = 241,217,517,321
5. Step 5: Solve for x
   x = 241,217,517,321/229,788
6. Step 6: Final answer
   x = 1,049,739.40