Finding the Third Proportional to 209,030 and 459,678

Step by Step Solution

1. Step 1: Write the proportion equation
   209,030 : 459,678 = 459,678 : x
2. Step 2: Convert to fraction form
   209,030/459,678 = 459,678/x
3. Step 3: Cross multiply
   209,030x = 459,678 × 459,678
4. Step 4: Simplify right side
   209,030x = 211,303,863,684
5. Step 5: Solve for x
   x = 211,303,863,684/209,030
6. Step 6: Final answer
   x = 1,010,878.17