Finding the Third Proportional to 253,728 and 551,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,728 : 551,191.50 = 551,191.50 : x
2. Step 2: Convert to fraction form
   253,728/551,191.50 = 551,191.50/x
3. Step 3: Cross multiply
   253,728x = 551,191.50 × 551,191.50
4. Step 4: Simplify right side
   253,728x = 303,812,069,672.25
5. Step 5: Solve for x
   x = 303,812,069,672.25/253,728
6. Step 6: Final answer
   x = 1,197,392.76