Finding the Third Proportional to 126,031.50 and 199,656

Step by Step Solution

1. Step 1: Write the proportion equation
   126,031.50 : 199,656 = 199,656 : x
2. Step 2: Convert to fraction form
   126,031.50/199,656 = 199,656/x
3. Step 3: Cross multiply
   126,031.50x = 199,656 × 199,656
4. Step 4: Simplify right side
   126,031.50x = 39,862,518,336
5. Step 5: Solve for x
   x = 39,862,518,336/126,031.50
6. Step 6: Final answer
   x = 316,290.12