Finding the Third Proportional to 767,644 and 1,623,860

Step by Step Solution

1. Step 1: Write the proportion equation
   767,644 : 1,623,860 = 1,623,860 : x
2. Step 2: Convert to fraction form
   767,644/1,623,860 = 1,623,860/x
3. Step 3: Cross multiply
   767,644x = 1,623,860 × 1,623,860
4. Step 4: Simplify right side
   767,644x = 2,636,921,299,600
5. Step 5: Solve for x
   x = 2,636,921,299,600/767,644
6. Step 6: Final answer
   x = 3,435,083.58