Finding the Third Proportional to 208,513.50 and 455,259

Step by Step Solution

1. Step 1: Write the proportion equation
   208,513.50 : 455,259 = 455,259 : x
2. Step 2: Convert to fraction form
   208,513.50/455,259 = 455,259/x
3. Step 3: Cross multiply
   208,513.50x = 455,259 × 455,259
4. Step 4: Simplify right side
   208,513.50x = 207,260,757,081
5. Step 5: Solve for x
   x = 207,260,757,081/208,513.50
6. Step 6: Final answer
   x = 993,992.03