Finding the Third Proportional to 767,642 and 1,623,856

Step by Step Solution

1. Step 1: Write the proportion equation
   767,642 : 1,623,856 = 1,623,856 : x
2. Step 2: Convert to fraction form
   767,642/1,623,856 = 1,623,856/x
3. Step 3: Cross multiply
   767,642x = 1,623,856 × 1,623,856
4. Step 4: Simplify right side
   767,642x = 2,636,908,308,736
5. Step 5: Solve for x
   x = 2,636,908,308,736/767,642
6. Step 6: Final answer
   x = 3,435,075.61