Finding the Third Proportional to 3,150,290 and 6,870,742

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150,290 : 6,870,742 = 6,870,742 : x
2. Step 2: Convert to fraction form
   3,150,290/6,870,742 = 6,870,742/x
3. Step 3: Cross multiply
   3,150,290x = 6,870,742 × 6,870,742
4. Step 4: Simplify right side
   3,150,290x = 47,207,095,630,564
5. Step 5: Solve for x
   x = 47,207,095,630,564/3,150,290
6. Step 6: Final answer
   x = 14,984,999.99