Finding the Third Proportional to 818,442 and 1,778,552

Step by Step Solution

1. Step 1: Write the proportion equation
   818,442 : 1,778,552 = 1,778,552 : x
2. Step 2: Convert to fraction form
   818,442/1,778,552 = 1,778,552/x
3. Step 3: Cross multiply
   818,442x = 1,778,552 × 1,778,552
4. Step 4: Simplify right side
   818,442x = 3,163,247,216,704
5. Step 5: Solve for x
   x = 3,163,247,216,704/818,442
6. Step 6: Final answer
   x = 3,864,961.98