Finding the Third Proportional to 1,199,820 and 1,687,461

Step by Step Solution

1. Step 1: Write the proportion equation
   1,199,820 : 1,687,461 = 1,687,461 : x
2. Step 2: Convert to fraction form
   1,199,820/1,687,461 = 1,687,461/x
3. Step 3: Cross multiply
   1,199,820x = 1,687,461 × 1,687,461
4. Step 4: Simplify right side
   1,199,820x = 2,847,524,626,521
5. Step 5: Solve for x
   x = 2,847,524,626,521/1,199,820
6. Step 6: Final answer
   x = 2,373,293.18