Finding the Third Proportional to 281,866.50 and 436,536

Step by Step Solution

1. Step 1: Write the proportion equation
   281,866.50 : 436,536 = 436,536 : x
2. Step 2: Convert to fraction form
   281,866.50/436,536 = 436,536/x
3. Step 3: Cross multiply
   281,866.50x = 436,536 × 436,536
4. Step 4: Simplify right side
   281,866.50x = 190,563,679,296
5. Step 5: Solve for x
   x = 190,563,679,296/281,866.50
6. Step 6: Final answer
   x = 676,077.79