Finding the Third Proportional to 434,479.50 and 908,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,479.50 : 908,683.50 = 908,683.50 : x
2. Step 2: Convert to fraction form
   434,479.50/908,683.50 = 908,683.50/x
3. Step 3: Cross multiply
   434,479.50x = 908,683.50 × 908,683.50
4. Step 4: Simplify right side
   434,479.50x = 825,705,703,172.25
5. Step 5: Solve for x
   x = 825,705,703,172.25/434,479.50
6. Step 6: Final answer
   x = 1,900,448.01