Finding the Third Proportional to 302,824.50 and 655,812

Step by Step Solution

1. Step 1: Write the proportion equation
   302,824.50 : 655,812 = 655,812 : x
2. Step 2: Convert to fraction form
   302,824.50/655,812 = 655,812/x
3. Step 3: Cross multiply
   302,824.50x = 655,812 × 655,812
4. Step 4: Simplify right side
   302,824.50x = 430,089,379,344
5. Step 5: Solve for x
   x = 430,089,379,344/302,824.50
6. Step 6: Final answer
   x = 1,420,259.52