Finding the Third Proportional to 217,116 and 471,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   217,116 : 471,361.50 = 471,361.50 : x
2. Step 2: Convert to fraction form
   217,116/471,361.50 = 471,361.50/x
3. Step 3: Cross multiply
   217,116x = 471,361.50 × 471,361.50
4. Step 4: Simplify right side
   217,116x = 222,181,663,682.25
5. Step 5: Solve for x
   x = 222,181,663,682.25/217,116
6. Step 6: Final answer
   x = 1,023,331.60