Finding the Third Proportional to 251,379 and 528,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   251,379 : 528,610.50 = 528,610.50 : x
2. Step 2: Convert to fraction form
   251,379/528,610.50 = 528,610.50/x
3. Step 3: Cross multiply
   251,379x = 528,610.50 × 528,610.50
4. Step 4: Simplify right side
   251,379x = 279,429,060,710.25
5. Step 5: Solve for x
   x = 279,429,060,710.25/251,379
6. Step 6: Final answer
   x = 1,111,584.74