Finding the Third Proportional to 828,308 and 1,806,558

Step by Step Solution

1. Step 1: Write the proportion equation
   828,308 : 1,806,558 = 1,806,558 : x
2. Step 2: Convert to fraction form
   828,308/1,806,558 = 1,806,558/x
3. Step 3: Cross multiply
   828,308x = 1,806,558 × 1,806,558
4. Step 4: Simplify right side
   828,308x = 3,263,651,807,364
5. Step 5: Solve for x
   x = 3,263,651,807,364/828,308
6. Step 6: Final answer
   x = 3,940,142.81