Finding the Third Proportional to 5,902,446 and 8,684,885

Step by Step Solution

1. Step 1: Write the proportion equation
   5,902,446 : 8,684,885 = 8,684,885 : x
2. Step 2: Convert to fraction form
   5,902,446/8,684,885 = 8,684,885/x
3. Step 3: Cross multiply
   5,902,446x = 8,684,885 × 8,684,885
4. Step 4: Simplify right side
   5,902,446x = 75,427,227,463,225
5. Step 5: Solve for x
   x = 75,427,227,463,225/5,902,446
6. Step 6: Final answer
   x = 12,778,977.98