Finding the Third Proportional to 281,043 and 406,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,043 : 406,255.50 = 406,255.50 : x
2. Step 2: Convert to fraction form
   281,043/406,255.50 = 406,255.50/x
3. Step 3: Cross multiply
   281,043x = 406,255.50 × 406,255.50
4. Step 4: Simplify right side
   281,043x = 165,043,531,280.25
5. Step 5: Solve for x
   x = 165,043,531,280.25/281,043
6. Step 6: Final answer
   x = 587,253.66