Finding the Third Proportional to 284,292 and 612,866.25

Step by Step Solution

1. Step 1: Write the proportion equation
   284,292 : 612,866.25 = 612,866.25 : x
2. Step 2: Convert to fraction form
   284,292/612,866.25 = 612,866.25/x
3. Step 3: Cross multiply
   284,292x = 612,866.25 × 612,866.25
4. Step 4: Simplify right side
   284,292x = 375,605,040,389.06
5. Step 5: Solve for x
   x = 375,605,040,389.06/284,292
6. Step 6: Final answer
   x = 1,321,194.55