Finding the Third Proportional to 770,288 and 1,181,424

Step by Step Solution

1. Step 1: Write the proportion equation
   770,288 : 1,181,424 = 1,181,424 : x
2. Step 2: Convert to fraction form
   770,288/1,181,424 = 1,181,424/x
3. Step 3: Cross multiply
   770,288x = 1,181,424 × 1,181,424
4. Step 4: Simplify right side
   770,288x = 1,395,762,667,776
5. Step 5: Solve for x
   x = 1,395,762,667,776/770,288
6. Step 6: Final answer
   x = 1,812,001.05