Finding the Third Proportional to 2,816,556 and 4,238,280

Step by Step Solution

1. Step 1: Write the proportion equation
   2,816,556 : 4,238,280 = 4,238,280 : x
2. Step 2: Convert to fraction form
   2,816,556/4,238,280 = 4,238,280/x
3. Step 3: Cross multiply
   2,816,556x = 4,238,280 × 4,238,280
4. Step 4: Simplify right side
   2,816,556x = 17,963,017,358,400
5. Step 5: Solve for x
   x = 17,963,017,358,400/2,816,556
6. Step 6: Final answer
   x = 6,377,653.19