Finding the Third Proportional to 218,968 and 472,118

Step by Step Solution

1. Step 1: Write the proportion equation
   218,968 : 472,118 = 472,118 : x
2. Step 2: Convert to fraction form
   218,968/472,118 = 472,118/x
3. Step 3: Cross multiply
   218,968x = 472,118 × 472,118
4. Step 4: Simplify right side
   218,968x = 222,895,405,924
5. Step 5: Solve for x
   x = 222,895,405,924/218,968
6. Step 6: Final answer
   x = 1,017,935.98