Finding the Third Proportional to 426,640.75 and 916,596

Step by Step Solution

1. Step 1: Write the proportion equation
   426,640.75 : 916,596 = 916,596 : x
2. Step 2: Convert to fraction form
   426,640.75/916,596 = 916,596/x
3. Step 3: Cross multiply
   426,640.75x = 916,596 × 916,596
4. Step 4: Simplify right side
   426,640.75x = 840,148,227,216
5. Step 5: Solve for x
   x = 840,148,227,216/426,640.75
6. Step 6: Final answer
   x = 1,969,217.02