Finding the Third Proportional to 1,687,493 and 2,613,621

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687,493 : 2,613,621 = 2,613,621 : x
2. Step 2: Convert to fraction form
   1,687,493/2,613,621 = 2,613,621/x
3. Step 3: Cross multiply
   1,687,493x = 2,613,621 × 2,613,621
4. Step 4: Simplify right side
   1,687,493x = 6,831,014,731,641
5. Step 5: Solve for x
   x = 6,831,014,731,641/1,687,493
6. Step 6: Final answer
   x = 4,048,025.52