Finding the Third Proportional to 2,598,993 and 3,999,981

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598,993 : 3,999,981 = 3,999,981 : x
2. Step 2: Convert to fraction form
   2,598,993/3,999,981 = 3,999,981/x
3. Step 3: Cross multiply
   2,598,993x = 3,999,981 × 3,999,981
4. Step 4: Simplify right side
   2,598,993x = 15,999,848,000,361
5. Step 5: Solve for x
   x = 15,999,848,000,361/2,598,993
6. Step 6: Final answer
   x = 6,156,172.03