Finding the Third Proportional to 803,818 and 1,607,636

Step by Step Solution

1. Step 1: Write the proportion equation
   803,818 : 1,607,636 = 1,607,636 : x
2. Step 2: Convert to fraction form
   803,818/1,607,636 = 1,607,636/x
3. Step 3: Cross multiply
   803,818x = 1,607,636 × 1,607,636
4. Step 4: Simplify right side
   803,818x = 2,584,493,508,496
5. Step 5: Solve for x
   x = 2,584,493,508,496/803,818
6. Step 6: Final answer
   x = 3,215,272