Finding the Third Proportional to 1,248,586 and 2,686,550

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,586 : 2,686,550 = 2,686,550 : x
2. Step 2: Convert to fraction form
   1,248,586/2,686,550 = 2,686,550/x
3. Step 3: Cross multiply
   1,248,586x = 2,686,550 × 2,686,550
4. Step 4: Simplify right side
   1,248,586x = 7,217,550,902,500
5. Step 5: Solve for x
   x = 7,217,550,902,500/1,248,586
6. Step 6: Final answer
   x = 5,780,579.71