Finding the Third Proportional to 302,830.50 and 655,824

Step by Step Solution

1. Step 1: Write the proportion equation
   302,830.50 : 655,824 = 655,824 : x
2. Step 2: Convert to fraction form
   302,830.50/655,824 = 655,824/x
3. Step 3: Cross multiply
   302,830.50x = 655,824 × 655,824
4. Step 4: Simplify right side
   302,830.50x = 430,105,118,976
5. Step 5: Solve for x
   x = 430,105,118,976/302,830.50
6. Step 6: Final answer
   x = 1,420,283.36