Finding the Third Proportional to 815,624 and 1,199,636

Step by Step Solution

1. Step 1: Write the proportion equation
   815,624 : 1,199,636 = 1,199,636 : x
2. Step 2: Convert to fraction form
   815,624/1,199,636 = 1,199,636/x
3. Step 3: Cross multiply
   815,624x = 1,199,636 × 1,199,636
4. Step 4: Simplify right side
   815,624x = 1,439,126,532,496
5. Step 5: Solve for x
   x = 1,439,126,532,496/815,624
6. Step 6: Final answer
   x = 1,764,448.49