Finding the Third Proportional to 204,497 and 315,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   204,497 : 315,865.50 = 315,865.50 : x
2. Step 2: Convert to fraction form
   204,497/315,865.50 = 315,865.50/x
3. Step 3: Cross multiply
   204,497x = 315,865.50 × 315,865.50
4. Step 4: Simplify right side
   204,497x = 99,771,014,090.25
5. Step 5: Solve for x
   x = 99,771,014,090.25/204,497
6. Step 6: Final answer
   x = 487,884.98