Finding the Third Proportional to 228,141 and 528,132.50

Step by Step Solution

1. Step 1: Write the proportion equation
   228,141 : 528,132.50 = 528,132.50 : x
2. Step 2: Convert to fraction form
   228,141/528,132.50 = 528,132.50/x
3. Step 3: Cross multiply
   228,141x = 528,132.50 × 528,132.50
4. Step 4: Simplify right side
   228,141x = 278,923,937,556.25
5. Step 5: Solve for x
   x = 278,923,937,556.25/228,141
6. Step 6: Final answer
   x = 1,222,594.53