Finding the Third Proportional to 189,252 and 281,144.25

Step by Step Solution

1. Step 1: Write the proportion equation
   189,252 : 281,144.25 = 281,144.25 : x
2. Step 2: Convert to fraction form
   189,252/281,144.25 = 281,144.25/x
3. Step 3: Cross multiply
   189,252x = 281,144.25 × 281,144.25
4. Step 4: Simplify right side
   189,252x = 79,042,089,308.06
5. Step 5: Solve for x
   x = 79,042,089,308.06/189,252
6. Step 6: Final answer
   x = 417,655.24