Finding the Third Proportional to 218,656 and 471,764

Step by Step Solution

1. Step 1: Write the proportion equation
   218,656 : 471,764 = 471,764 : x
2. Step 2: Convert to fraction form
   218,656/471,764 = 471,764/x
3. Step 3: Cross multiply
   218,656x = 471,764 × 471,764
4. Step 4: Simplify right side
   218,656x = 222,561,271,696
5. Step 5: Solve for x
   x = 222,561,271,696/218,656
6. Step 6: Final answer
   x = 1,017,860.35