Finding the Third Proportional to 284,299.50 and 443,554.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,299.50 : 443,554.50 = 443,554.50 : x
2. Step 2: Convert to fraction form
   284,299.50/443,554.50 = 443,554.50/x
3. Step 3: Cross multiply
   284,299.50x = 443,554.50 × 443,554.50
4. Step 4: Simplify right side
   284,299.50x = 196,740,594,470.25
5. Step 5: Solve for x
   x = 196,740,594,470.25/284,299.50
6. Step 6: Final answer
   x = 692,018.78