Finding the Third Proportional to 1,395,080 and 2,989,450

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395,080 : 2,989,450 = 2,989,450 : x
2. Step 2: Convert to fraction form
   1,395,080/2,989,450 = 2,989,450/x
3. Step 3: Cross multiply
   1,395,080x = 2,989,450 × 2,989,450
4. Step 4: Simplify right side
   1,395,080x = 8,936,811,302,500
5. Step 5: Solve for x
   x = 8,936,811,302,500/1,395,080
6. Step 6: Final answer
   x = 6,405,948.98