Finding the Third Proportional to 1,131,284 and 2,439,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,284 : 2,439,688 = 2,439,688 : x
2. Step 2: Convert to fraction form
   1,131,284/2,439,688 = 2,439,688/x
3. Step 3: Cross multiply
   1,131,284x = 2,439,688 × 2,439,688
4. Step 4: Simplify right side
   1,131,284x = 5,952,077,537,344
5. Step 5: Solve for x
   x = 5,952,077,537,344/1,131,284
6. Step 6: Final answer
   x = 5,261,346.87