Finding the Third Proportional to 780,544 and 1,622,320

Step by Step Solution

1. Step 1: Write the proportion equation
   780,544 : 1,622,320 = 1,622,320 : x
2. Step 2: Convert to fraction form
   780,544/1,622,320 = 1,622,320/x
3. Step 3: Cross multiply
   780,544x = 1,622,320 × 1,622,320
4. Step 4: Simplify right side
   780,544x = 2,631,922,182,400
5. Step 5: Solve for x
   x = 2,631,922,182,400/780,544
6. Step 6: Final answer
   x = 3,371,907.52