Finding the Third Proportional to 217,453.50 and 441,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   217,453.50 : 441,022.50 = 441,022.50 : x
2. Step 2: Convert to fraction form
   217,453.50/441,022.50 = 441,022.50/x
3. Step 3: Cross multiply
   217,453.50x = 441,022.50 × 441,022.50
4. Step 4: Simplify right side
   217,453.50x = 194,500,845,506.25
5. Step 5: Solve for x
   x = 194,500,845,506.25/217,453.50
6. Step 6: Final answer
   x = 894,447.99