Finding the Third Proportional to 217,570.50 and 471,429

Step by Step Solution

1. Step 1: Write the proportion equation
   217,570.50 : 471,429 = 471,429 : x
2. Step 2: Convert to fraction form
   217,570.50/471,429 = 471,429/x
3. Step 3: Cross multiply
   217,570.50x = 471,429 × 471,429
4. Step 4: Simplify right side
   217,570.50x = 222,245,302,041
5. Step 5: Solve for x
   x = 222,245,302,041/217,570.50
6. Step 6: Final answer
   x = 1,021,486.38