Finding the Third Proportional to 875,553 and 1,917,180

Step by Step Solution

1. Step 1: Write the proportion equation
   875,553 : 1,917,180 = 1,917,180 : x
2. Step 2: Convert to fraction form
   875,553/1,917,180 = 1,917,180/x
3. Step 3: Cross multiply
   875,553x = 1,917,180 × 1,917,180
4. Step 4: Simplify right side
   875,553x = 3,675,579,152,400
5. Step 5: Solve for x
   x = 3,675,579,152,400/875,553
6. Step 6: Final answer
   x = 4,198,008.75