Finding the Third Proportional to 710,978 and 1,521,601

Step by Step Solution

1. Step 1: Write the proportion equation
   710,978 : 1,521,601 = 1,521,601 : x
2. Step 2: Convert to fraction form
   710,978/1,521,601 = 1,521,601/x
3. Step 3: Cross multiply
   710,978x = 1,521,601 × 1,521,601
4. Step 4: Simplify right side
   710,978x = 2,315,269,603,201
5. Step 5: Solve for x
   x = 2,315,269,603,201/710,978
6. Step 6: Final answer
   x = 3,256,457.45