Finding the Third Proportional to 6,418,994,665 and 13,977,550,277

Step by Step Solution

1. Step 1: Write the proportion equation
   6,418,994,665 : 13,977,550,277 = 13,977,550,277 : x
2. Step 2: Convert to fraction form
   6,418,994,665/13,977,550,277 = 13,977,550,277/x
3. Step 3: Cross multiply
   6,418,994,665x = 13,977,550,277 × 13,977,550,277
4. Step 4: Simplify right side
   6,418,994,665x = 195,371,911,746,062,778,368
5. Step 5: Solve for x
   x = 195,371,911,746,062,778,368/6,418,994,665
6. Step 6: Final answer
   x = 30,436,528,139.11