Finding the Third Proportional to 778,448 and 1,673,312

Step by Step Solution

1. Step 1: Write the proportion equation
   778,448 : 1,673,312 = 1,673,312 : x
2. Step 2: Convert to fraction form
   778,448/1,673,312 = 1,673,312/x
3. Step 3: Cross multiply
   778,448x = 1,673,312 × 1,673,312
4. Step 4: Simplify right side
   778,448x = 2,799,973,049,344
5. Step 5: Solve for x
   x = 2,799,973,049,344/778,448
6. Step 6: Final answer
   x = 3,596,865.88