Finding the Third Proportional to 217,908 and 474,414.75

Step by Step Solution

1. Step 1: Write the proportion equation
   217,908 : 474,414.75 = 474,414.75 : x
2. Step 2: Convert to fraction form
   217,908/474,414.75 = 474,414.75/x
3. Step 3: Cross multiply
   217,908x = 474,414.75 × 474,414.75
4. Step 4: Simplify right side
   217,908x = 225,069,355,017.56
5. Step 5: Solve for x
   x = 225,069,355,017.56/217,908
6. Step 6: Final answer
   x = 1,032,864.12