Finding the Third Proportional to 170,577 and 269,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,577 : 269,905.50 = 269,905.50 : x
2. Step 2: Convert to fraction form
   170,577/269,905.50 = 269,905.50/x
3. Step 3: Cross multiply
   170,577x = 269,905.50 × 269,905.50
4. Step 4: Simplify right side
   170,577x = 72,848,978,930.25
5. Step 5: Solve for x
   x = 72,848,978,930.25/170,577
6. Step 6: Final answer
   x = 427,073.87