Finding the Third Proportional to 1,134,926 and 1,686,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134,926 : 1,686,308 = 1,686,308 : x
2. Step 2: Convert to fraction form
   1,134,926/1,686,308 = 1,686,308/x
3. Step 3: Cross multiply
   1,134,926x = 1,686,308 × 1,686,308
4. Step 4: Simplify right side
   1,134,926x = 2,843,634,670,864
5. Step 5: Solve for x
   x = 2,843,634,670,864/1,134,926
6. Step 6: Final answer
   x = 2,505,568.35