Finding the Third Proportional to 1,248,242 and 2,686,086

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,242 : 2,686,086 = 2,686,086 : x
2. Step 2: Convert to fraction form
   1,248,242/2,686,086 = 2,686,086/x
3. Step 3: Cross multiply
   1,248,242x = 2,686,086 × 2,686,086
4. Step 4: Simplify right side
   1,248,242x = 7,215,057,999,396
5. Step 5: Solve for x
   x = 7,215,057,999,396/1,248,242
6. Step 6: Final answer
   x = 5,780,175.64