Finding the Third Proportional to 204,360 and 318,956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   204,360 : 318,956.50 = 318,956.50 : x
2. Step 2: Convert to fraction form
   204,360/318,956.50 = 318,956.50/x
3. Step 3: Cross multiply
   204,360x = 318,956.50 × 318,956.50
4. Step 4: Simplify right side
   204,360x = 101,733,248,892.25
5. Step 5: Solve for x
   x = 101,733,248,892.25/204,360
6. Step 6: Final answer
   x = 497,813.90