Finding the Third Proportional to 217,830 and 469,036

Step by Step Solution

1. Step 1: Write the proportion equation
   217,830 : 469,036 = 469,036 : x
2. Step 2: Convert to fraction form
   217,830/469,036 = 469,036/x
3. Step 3: Cross multiply
   217,830x = 469,036 × 469,036
4. Step 4: Simplify right side
   217,830x = 219,994,769,296
5. Step 5: Solve for x
   x = 219,994,769,296/217,830
6. Step 6: Final answer
   x = 1,009,937.88