Finding the Third Proportional to 217,115 and 471,365.50

Step by Step Solution

1. Step 1: Write the proportion equation
   217,115 : 471,365.50 = 471,365.50 : x
2. Step 2: Convert to fraction form
   217,115/471,365.50 = 471,365.50/x
3. Step 3: Cross multiply
   217,115x = 471,365.50 × 471,365.50
4. Step 4: Simplify right side
   217,115x = 222,185,434,590.25
5. Step 5: Solve for x
   x = 222,185,434,590.25/217,115
6. Step 6: Final answer
   x = 1,023,353.68