Finding the Third Proportional to 208,514.50 and 455,261

Step by Step Solution

1. Step 1: Write the proportion equation
   208,514.50 : 455,261 = 455,261 : x
2. Step 2: Convert to fraction form
   208,514.50/455,261 = 455,261/x
3. Step 3: Cross multiply
   208,514.50x = 455,261 × 455,261
4. Step 4: Simplify right side
   208,514.50x = 207,262,578,121
5. Step 5: Solve for x
   x = 207,262,578,121/208,514.50
6. Step 6: Final answer
   x = 993,996.00