Finding the Third Proportional to 208,609.50 and 456,585

Step by Step Solution

1. Step 1: Write the proportion equation
   208,609.50 : 456,585 = 456,585 : x
2. Step 2: Convert to fraction form
   208,609.50/456,585 = 456,585/x
3. Step 3: Cross multiply
   208,609.50x = 456,585 × 456,585
4. Step 4: Simplify right side
   208,609.50x = 208,469,862,225
5. Step 5: Solve for x
   x = 208,469,862,225/208,609.50
6. Step 6: Final answer
   x = 999,330.63