Finding the Third Proportional to 208,500 and 455,238

Step by Step Solution

1. Step 1: Write the proportion equation
   208,500 : 455,238 = 455,238 : x
2. Step 2: Convert to fraction form
   208,500/455,238 = 455,238/x
3. Step 3: Cross multiply
   208,500x = 455,238 × 455,238
4. Step 4: Simplify right side
   208,500x = 207,241,636,644
5. Step 5: Solve for x
   x = 207,241,636,644/208,500
6. Step 6: Final answer
   x = 993,964.68