Finding the Third Proportional to 104,142 and 215,668.50

Step by Step Solution

1. Step 1: Write the proportion equation
   104,142 : 215,668.50 = 215,668.50 : x
2. Step 2: Convert to fraction form
   104,142/215,668.50 = 215,668.50/x
3. Step 3: Cross multiply
   104,142x = 215,668.50 × 215,668.50
4. Step 4: Simplify right side
   104,142x = 46,512,901,892.25
5. Step 5: Solve for x
   x = 46,512,901,892.25/104,142
6. Step 6: Final answer
   x = 446,629.62