Finding the Third Proportional to 105,439.50 and 227,486

Step by Step Solution

1. Step 1: Write the proportion equation
   105,439.50 : 227,486 = 227,486 : x
2. Step 2: Convert to fraction form
   105,439.50/227,486 = 227,486/x
3. Step 3: Cross multiply
   105,439.50x = 227,486 × 227,486
4. Step 4: Simplify right side
   105,439.50x = 51,749,880,196
5. Step 5: Solve for x
   x = 51,749,880,196/105,439.50
6. Step 6: Final answer
   x = 490,801.65