Finding the Third Proportional to 6,280,870 and 9,961,953

Step by Step Solution

1. Step 1: Write the proportion equation
   6,280,870 : 9,961,953 = 9,961,953 : x
2. Step 2: Convert to fraction form
   6,280,870/9,961,953 = 9,961,953/x
3. Step 3: Cross multiply
   6,280,870x = 9,961,953 × 9,961,953
4. Step 4: Simplify right side
   6,280,870x = 99,240,507,574,209
5. Step 5: Solve for x
   x = 99,240,507,574,209/6,280,870
6. Step 6: Final answer
   x = 15,800,439.68