Finding the Third Proportional to 281,809.50 and 436,863

Step by Step Solution

1. Step 1: Write the proportion equation
   281,809.50 : 436,863 = 436,863 : x
2. Step 2: Convert to fraction form
   281,809.50/436,863 = 436,863/x
3. Step 3: Cross multiply
   281,809.50x = 436,863 × 436,863
4. Step 4: Simplify right side
   281,809.50x = 190,849,280,769
5. Step 5: Solve for x
   x = 190,849,280,769/281,809.50
6. Step 6: Final answer
   x = 677,227.99