Finding the Third Proportional to 105,481.50 and 214,880

Step by Step Solution

1. Step 1: Write the proportion equation
   105,481.50 : 214,880 = 214,880 : x
2. Step 2: Convert to fraction form
   105,481.50/214,880 = 214,880/x
3. Step 3: Cross multiply
   105,481.50x = 214,880 × 214,880
4. Step 4: Simplify right side
   105,481.50x = 46,173,414,400
5. Step 5: Solve for x
   x = 46,173,414,400/105,481.50
6. Step 6: Final answer
   x = 437,739.46