Finding the Third Proportional to 1,890,404 and 2,870,556

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,404 : 2,870,556 = 2,870,556 : x
2. Step 2: Convert to fraction form
   1,890,404/2,870,556 = 2,870,556/x
3. Step 3: Cross multiply
   1,890,404x = 2,870,556 × 2,870,556
4. Step 4: Simplify right side
   1,890,404x = 8,240,091,749,136
5. Step 5: Solve for x
   x = 8,240,091,749,136/1,890,404
6. Step 6: Final answer
   x = 4,358,905.16