Finding the Third Proportional to 869,624 and 1,300,436

Step by Step Solution

1. Step 1: Write the proportion equation
   869,624 : 1,300,436 = 1,300,436 : x
2. Step 2: Convert to fraction form
   869,624/1,300,436 = 1,300,436/x
3. Step 3: Cross multiply
   869,624x = 1,300,436 × 1,300,436
4. Step 4: Simplify right side
   869,624x = 1,691,133,790,096
5. Step 5: Solve for x
   x = 1,691,133,790,096/869,624
6. Step 6: Final answer
   x = 1,944,672.40