Finding the Third Proportional to 492,439 and 1,058,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   492,439 : 1,058,442.50 = 1,058,442.50 : x
2. Step 2: Convert to fraction form
   492,439/1,058,442.50 = 1,058,442.50/x
3. Step 3: Cross multiply
   492,439x = 1,058,442.50 × 1,058,442.50
4. Step 4: Simplify right side
   492,439x = 1,120,300,525,806.25
5. Step 5: Solve for x
   x = 1,120,300,525,806.25/492,439
6. Step 6: Final answer
   x = 2,275,003.66