Finding the Third Proportional to 203,617.50 and 438,450

Step by Step Solution

1. Step 1: Write the proportion equation
   203,617.50 : 438,450 = 438,450 : x
2. Step 2: Convert to fraction form
   203,617.50/438,450 = 438,450/x
3. Step 3: Cross multiply
   203,617.50x = 438,450 × 438,450
4. Step 4: Simplify right side
   203,617.50x = 192,238,402,500
5. Step 5: Solve for x
   x = 192,238,402,500/203,617.50
6. Step 6: Final answer
   x = 944,115.33