Finding the Third Proportional to 434,465 and 908,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,465 : 908,654.50 = 908,654.50 : x
2. Step 2: Convert to fraction form
   434,465/908,654.50 = 908,654.50/x
3. Step 3: Cross multiply
   434,465x = 908,654.50 × 908,654.50
4. Step 4: Simplify right side
   434,465x = 825,653,000,370.25
5. Step 5: Solve for x
   x = 825,653,000,370.25/434,465
6. Step 6: Final answer
   x = 1,900,390.14