Finding the Third Proportional to 253,175.50 and 381,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,175.50 : 381,383.50 = 381,383.50 : x
2. Step 2: Convert to fraction form
   253,175.50/381,383.50 = 381,383.50/x
3. Step 3: Cross multiply
   253,175.50x = 381,383.50 × 381,383.50
4. Step 4: Simplify right side
   253,175.50x = 145,453,374,072.25
5. Step 5: Solve for x
   x = 145,453,374,072.25/253,175.50
6. Step 6: Final answer
   x = 574,515.99