Finding the Third Proportional to 204,490.50 and 418,897

Step by Step Solution

1. Step 1: Write the proportion equation
   204,490.50 : 418,897 = 418,897 : x
2. Step 2: Convert to fraction form
   204,490.50/418,897 = 418,897/x
3. Step 3: Cross multiply
   204,490.50x = 418,897 × 418,897
4. Step 4: Simplify right side
   204,490.50x = 175,474,696,609
5. Step 5: Solve for x
   x = 175,474,696,609/204,490.50
6. Step 6: Final answer
   x = 858,106.84