Finding the Third Proportional to 281,515.50 and 436,272

Step by Step Solution

1. Step 1: Write the proportion equation
   281,515.50 : 436,272 = 436,272 : x
2. Step 2: Convert to fraction form
   281,515.50/436,272 = 436,272/x
3. Step 3: Cross multiply
   281,515.50x = 436,272 × 436,272
4. Step 4: Simplify right side
   281,515.50x = 190,333,257,984
5. Step 5: Solve for x
   x = 190,333,257,984/281,515.50
6. Step 6: Final answer
   x = 676,102.23