Finding the Third Proportional to 1,121,569 and 1,686,848

Step by Step Solution

1. Step 1: Write the proportion equation
   1,121,569 : 1,686,848 = 1,686,848 : x
2. Step 2: Convert to fraction form
   1,121,569/1,686,848 = 1,686,848/x
3. Step 3: Cross multiply
   1,121,569x = 1,686,848 × 1,686,848
4. Step 4: Simplify right side
   1,121,569x = 2,845,456,175,104
5. Step 5: Solve for x
   x = 2,845,456,175,104/1,121,569
6. Step 6: Final answer
   x = 2,537,031.76