Finding the Third Proportional to 217,819.69 and 471,837.38

Step by Step Solution

1. Step 1: Write the proportion equation
   217,819.69 : 471,837.38 = 471,837.38 : x
2. Step 2: Convert to fraction form
   217,819.69/471,837.38 = 471,837.38/x
3. Step 3: Cross multiply
   217,819.69x = 471,837.38 × 471,837.38
4. Step 4: Simplify right side
   217,819.69x = 222,630,508,446.89
5. Step 5: Solve for x
   x = 222,630,508,446.89/217,819.69
6. Step 6: Final answer
   x = 1,022,086.25