Finding the Third Proportional to 869,615 and 1,300,425

Step by Step Solution

1. Step 1: Write the proportion equation
   869,615 : 1,300,425 = 1,300,425 : x
2. Step 2: Convert to fraction form
   869,615/1,300,425 = 1,300,425/x
3. Step 3: Cross multiply
   869,615x = 1,300,425 × 1,300,425
4. Step 4: Simplify right side
   869,615x = 1,691,105,180,625
5. Step 5: Solve for x
   x = 1,691,105,180,625/869,615
6. Step 6: Final answer
   x = 1,944,659.63