Finding the Third Proportional to 217,814.13 and 471,828

Step by Step Solution

1. Step 1: Write the proportion equation
   217,814.13 : 471,828 = 471,828 : x
2. Step 2: Convert to fraction form
   217,814.13/471,828 = 471,828/x
3. Step 3: Cross multiply
   217,814.13x = 471,828 × 471,828
4. Step 4: Simplify right side
   217,814.13x = 222,621,661,584
5. Step 5: Solve for x
   x = 222,621,661,584/217,814.13
6. Step 6: Final answer
   x = 1,022,071.74