Finding the Third Proportional to 250,728 and 529,131.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,728 : 529,131.50 = 529,131.50 : x
2. Step 2: Convert to fraction form
   250,728/529,131.50 = 529,131.50/x
3. Step 3: Cross multiply
   250,728x = 529,131.50 × 529,131.50
4. Step 4: Simplify right side
   250,728x = 279,980,144,292.25
5. Step 5: Solve for x
   x = 279,980,144,292.25/250,728
6. Step 6: Final answer
   x = 1,116,668.84