Finding the Third Proportional to 1,243,870.80 and 2,660,661.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,870.80 : 2,660,661.42 = 2,660,661.42 : x
2. Step 2: Convert to fraction form
   1,243,870.80/2,660,661.42 = 2,660,661.42/x
3. Step 3: Cross multiply
   1,243,870.80x = 2,660,661.42 × 2,660,661.42
4. Step 4: Simplify right side
   1,243,870.80x = 7,079,119,201,853.90
5. Step 5: Solve for x
   x = 7,079,119,201,853.90/1,243,870.80
6. Step 6: Final answer
   x = 5,691,201.35