Finding the Third Proportional to 218,815.50 and 471,111

Step by Step Solution

1. Step 1: Write the proportion equation
   218,815.50 : 471,111 = 471,111 : x
2. Step 2: Convert to fraction form
   218,815.50/471,111 = 471,111/x
3. Step 3: Cross multiply
   218,815.50x = 471,111 × 471,111
4. Step 4: Simplify right side
   218,815.50x = 221,945,574,321
5. Step 5: Solve for x
   x = 221,945,574,321/218,815.50
6. Step 6: Final answer
   x = 1,014,304.63