Finding the Third Proportional to 1,096,402 and 1,687,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096,402 : 1,687,408 = 1,687,408 : x
2. Step 2: Convert to fraction form
   1,096,402/1,687,408 = 1,687,408/x
3. Step 3: Cross multiply
   1,096,402x = 1,687,408 × 1,687,408
4. Step 4: Simplify right side
   1,096,402x = 2,847,345,758,464
5. Step 5: Solve for x
   x = 2,847,345,758,464/1,096,402
6. Step 6: Final answer
   x = 2,596,990.66