Finding the Third Proportional to 199,705.50 and 434,676

Step by Step Solution

1. Step 1: Write the proportion equation
   199,705.50 : 434,676 = 434,676 : x
2. Step 2: Convert to fraction form
   199,705.50/434,676 = 434,676/x
3. Step 3: Cross multiply
   199,705.50x = 434,676 × 434,676
4. Step 4: Simplify right side
   199,705.50x = 188,943,224,976
5. Step 5: Solve for x
   x = 188,943,224,976/199,705.50
6. Step 6: Final answer
   x = 946,109.27