Finding the Third Proportional to 200,673 and 311,056.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,673 : 311,056.50 = 311,056.50 : x
2. Step 2: Convert to fraction form
   200,673/311,056.50 = 311,056.50/x
3. Step 3: Cross multiply
   200,673x = 311,056.50 × 311,056.50
4. Step 4: Simplify right side
   200,673x = 96,756,146,192.25
5. Step 5: Solve for x
   x = 96,756,146,192.25/200,673
6. Step 6: Final answer
   x = 482,158.27