Finding the Third Proportional to 199,984.50 and 438,516

Step by Step Solution

1. Step 1: Write the proportion equation
   199,984.50 : 438,516 = 438,516 : x
2. Step 2: Convert to fraction form
   199,984.50/438,516 = 438,516/x
3. Step 3: Cross multiply
   199,984.50x = 438,516 × 438,516
4. Step 4: Simplify right side
   199,984.50x = 192,296,282,256
5. Step 5: Solve for x
   x = 192,296,282,256/199,984.50
6. Step 6: Final answer
   x = 961,555.93