Finding the Third Proportional to 3,860,278 and 8,355,992

Step by Step Solution

1. Step 1: Write the proportion equation
   3,860,278 : 8,355,992 = 8,355,992 : x
2. Step 2: Convert to fraction form
   3,860,278/8,355,992 = 8,355,992/x
3. Step 3: Cross multiply
   3,860,278x = 8,355,992 × 8,355,992
4. Step 4: Simplify right side
   3,860,278x = 69,822,602,304,064
5. Step 5: Solve for x
   x = 69,822,602,304,064/3,860,278
6. Step 6: Final answer
   x = 18,087,454.40