Finding the Third Proportional to 302,697 and 625,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,697 : 625,078.50 = 625,078.50 : x
2. Step 2: Convert to fraction form
   302,697/625,078.50 = 625,078.50/x
3. Step 3: Cross multiply
   302,697x = 625,078.50 × 625,078.50
4. Step 4: Simplify right side
   302,697x = 390,723,131,162.25
5. Step 5: Solve for x
   x = 390,723,131,162.25/302,697
6. Step 6: Final answer
   x = 1,290,806.09