Finding the Third Proportional to 218,908.50 and 471,582

Step by Step Solution

1. Step 1: Write the proportion equation
   218,908.50 : 471,582 = 471,582 : x
2. Step 2: Convert to fraction form
   218,908.50/471,582 = 471,582/x
3. Step 3: Cross multiply
   218,908.50x = 471,582 × 471,582
4. Step 4: Simplify right side
   218,908.50x = 222,389,582,724
5. Step 5: Solve for x
   x = 222,389,582,724/218,908.50
6. Step 6: Final answer
   x = 1,015,902.00