Finding the Third Proportional to 302,874 and 637,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,874 : 637,117.50 = 637,117.50 : x
2. Step 2: Convert to fraction form
   302,874/637,117.50 = 637,117.50/x
3. Step 3: Cross multiply
   302,874x = 637,117.50 × 637,117.50
4. Step 4: Simplify right side
   302,874x = 405,918,708,806.25
5. Step 5: Solve for x
   x = 405,918,708,806.25/302,874
6. Step 6: Final answer
   x = 1,340,223.03