Finding the Third Proportional to 6,418,688 and 13,943,936

Step by Step Solution

1. Step 1: Write the proportion equation
   6,418,688 : 13,943,936 = 13,943,936 : x
2. Step 2: Convert to fraction form
   6,418,688/13,943,936 = 13,943,936/x
3. Step 3: Cross multiply
   6,418,688x = 13,943,936 × 13,943,936
4. Step 4: Simplify right side
   6,418,688x = 194,433,351,172,096
5. Step 5: Solve for x
   x = 194,433,351,172,096/6,418,688
6. Step 6: Final answer
   x = 30,291,759.18