Finding the Third Proportional to 208,285.50 and 448,215

Step by Step Solution

1. Step 1: Write the proportion equation
   208,285.50 : 448,215 = 448,215 : x
2. Step 2: Convert to fraction form
   208,285.50/448,215 = 448,215/x
3. Step 3: Cross multiply
   208,285.50x = 448,215 × 448,215
4. Step 4: Simplify right side
   208,285.50x = 200,896,686,225
5. Step 5: Solve for x
   x = 200,896,686,225/208,285.50
6. Step 6: Final answer
   x = 964,525.55