Finding the Third Proportional to 1,890,400 and 2,870,550

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890,400 : 2,870,550 = 2,870,550 : x
2. Step 2: Convert to fraction form
   1,890,400/2,870,550 = 2,870,550/x
3. Step 3: Cross multiply
   1,890,400x = 2,870,550 × 2,870,550
4. Step 4: Simplify right side
   1,890,400x = 8,240,057,302,500
5. Step 5: Solve for x
   x = 8,240,057,302,500/1,890,400
6. Step 6: Final answer
   x = 4,358,896.16