Finding the Third Proportional to 618,261 and 1,302,945

Step by Step Solution

1. Step 1: Write the proportion equation
   618,261 : 1,302,945 = 1,302,945 : x
2. Step 2: Convert to fraction form
   618,261/1,302,945 = 1,302,945/x
3. Step 3: Cross multiply
   618,261x = 1,302,945 × 1,302,945
4. Step 4: Simplify right side
   618,261x = 1,697,665,673,025
5. Step 5: Solve for x
   x = 1,697,665,673,025/618,261
6. Step 6: Final answer
   x = 2,745,872.17