Finding the Third Proportional to 224,800 and 300,688

Step by Step Solution

1. Step 1: Write the proportion equation
   224,800 : 300,688 = 300,688 : x
2. Step 2: Convert to fraction form
   224,800/300,688 = 300,688/x
3. Step 3: Cross multiply
   224,800x = 300,688 × 300,688
4. Step 4: Simplify right side
   224,800x = 90,413,273,344
5. Step 5: Solve for x
   x = 90,413,273,344/224,800
6. Step 6: Final answer
   x = 402,194.28