Finding the Third Proportional to 380,804 and 836,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   380,804 : 836,340.50 = 836,340.50 : x
2. Step 2: Convert to fraction form
   380,804/836,340.50 = 836,340.50/x
3. Step 3: Cross multiply
   380,804x = 836,340.50 × 836,340.50
4. Step 4: Simplify right side
   380,804x = 699,465,431,940.25
5. Step 5: Solve for x
   x = 699,465,431,940.25/380,804
6. Step 6: Final answer
   x = 1,836,812.20