Finding the Third Proportional to 6,280,872 and 9,961,956

Step by Step Solution

1. Step 1: Write the proportion equation
   6,280,872 : 9,961,956 = 9,961,956 : x
2. Step 2: Convert to fraction form
   6,280,872/9,961,956 = 9,961,956/x
3. Step 3: Cross multiply
   6,280,872x = 9,961,956 × 9,961,956
4. Step 4: Simplify right side
   6,280,872x = 99,240,567,345,936
5. Step 5: Solve for x
   x = 99,240,567,345,936/6,280,872
6. Step 6: Final answer
   x = 15,800,444.17