Finding the Third Proportional to 302,272.50 and 658,815

Step by Step Solution

1. Step 1: Write the proportion equation
   302,272.50 : 658,815 = 658,815 : x
2. Step 2: Convert to fraction form
   302,272.50/658,815 = 658,815/x
3. Step 3: Cross multiply
   302,272.50x = 658,815 × 658,815
4. Step 4: Simplify right side
   302,272.50x = 434,037,204,225
5. Step 5: Solve for x
   x = 434,037,204,225/302,272.50
6. Step 6: Final answer
   x = 1,435,913.63