Finding the Third Proportional to 1,118,926 and 1,687,679

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,926 : 1,687,679 = 1,687,679 : x
2. Step 2: Convert to fraction form
   1,118,926/1,687,679 = 1,687,679/x
3. Step 3: Cross multiply
   1,118,926x = 1,687,679 × 1,687,679
4. Step 4: Simplify right side
   1,118,926x = 2,848,260,407,041
5. Step 5: Solve for x
   x = 2,848,260,407,041/1,118,926
6. Step 6: Final answer
   x = 2,545,530.63