Finding the Third Proportional to 618,225 and 1,302,870

Step by Step Solution

1. Step 1: Write the proportion equation
   618,225 : 1,302,870 = 1,302,870 : x
2. Step 2: Convert to fraction form
   618,225/1,302,870 = 1,302,870/x
3. Step 3: Cross multiply
   618,225x = 1,302,870 × 1,302,870
4. Step 4: Simplify right side
   618,225x = 1,697,470,236,900
5. Step 5: Solve for x
   x = 1,697,470,236,900/618,225
6. Step 6: Final answer
   x = 2,745,715.94