Finding the Third Proportional to 226,518 and 316,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   226,518 : 316,855.50 = 316,855.50 : x
2. Step 2: Convert to fraction form
   226,518/316,855.50 = 316,855.50/x
3. Step 3: Cross multiply
   226,518x = 316,855.50 × 316,855.50
4. Step 4: Simplify right side
   226,518x = 100,397,407,880.25
5. Step 5: Solve for x
   x = 100,397,407,880.25/226,518
6. Step 6: Final answer
   x = 443,220.44