Finding the Third Proportional to 818,534 and 1,676,428

Step by Step Solution

1. Step 1: Write the proportion equation
   818,534 : 1,676,428 = 1,676,428 : x
2. Step 2: Convert to fraction form
   818,534/1,676,428 = 1,676,428/x
3. Step 3: Cross multiply
   818,534x = 1,676,428 × 1,676,428
4. Step 4: Simplify right side
   818,534x = 2,810,410,839,184
5. Step 5: Solve for x
   x = 2,810,410,839,184/818,534
6. Step 6: Final answer
   x = 3,433,468.66