Finding the Third Proportional to 1,309,890 and 2,818,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,890 : 2,818,980 = 2,818,980 : x
2. Step 2: Convert to fraction form
   1,309,890/2,818,980 = 2,818,980/x
3. Step 3: Cross multiply
   1,309,890x = 2,818,980 × 2,818,980
4. Step 4: Simplify right side
   1,309,890x = 7,946,648,240,400
5. Step 5: Solve for x
   x = 7,946,648,240,400/1,309,890
6. Step 6: Final answer
   x = 6,066,653.11