Finding the Third Proportional to 881,640 and 1,800,639

Step by Step Solution

1. Step 1: Write the proportion equation
   881,640 : 1,800,639 = 1,800,639 : x
2. Step 2: Convert to fraction form
   881,640/1,800,639 = 1,800,639/x
3. Step 3: Cross multiply
   881,640x = 1,800,639 × 1,800,639
4. Step 4: Simplify right side
   881,640x = 3,242,300,808,321
5. Step 5: Solve for x
   x = 3,242,300,808,321/881,640
6. Step 6: Final answer
   x = 3,677,579.07