Finding the Third Proportional to 1,438,130 and 3,120,718

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,130 : 3,120,718 = 3,120,718 : x
2. Step 2: Convert to fraction form
   1,438,130/3,120,718 = 3,120,718/x
3. Step 3: Cross multiply
   1,438,130x = 3,120,718 × 3,120,718
4. Step 4: Simplify right side
   1,438,130x = 9,738,880,835,524
5. Step 5: Solve for x
   x = 9,738,880,835,524/1,438,130
6. Step 6: Final answer
   x = 6,771,905.76