Finding the Third Proportional to 1,103,164 and 1,686,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103,164 : 1,686,820 = 1,686,820 : x
2. Step 2: Convert to fraction form
   1,103,164/1,686,820 = 1,686,820/x
3. Step 3: Cross multiply
   1,103,164x = 1,686,820 × 1,686,820
4. Step 4: Simplify right side
   1,103,164x = 2,845,361,712,400
5. Step 5: Solve for x
   x = 2,845,361,712,400/1,103,164
6. Step 6: Final answer
   x = 2,579,273.54