Finding the Third Proportional to 434,467 and 908,658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,467 : 908,658.50 = 908,658.50 : x
2. Step 2: Convert to fraction form
   434,467/908,658.50 = 908,658.50/x
3. Step 3: Cross multiply
   434,467x = 908,658.50 × 908,658.50
4. Step 4: Simplify right side
   434,467x = 825,660,269,622.25
5. Step 5: Solve for x
   x = 825,660,269,622.25/434,467
6. Step 6: Final answer
   x = 1,900,398.12