Finding the Third Proportional to 6,781,315 and 10,171,986

Step by Step Solution

1. Step 1: Write the proportion equation
   6,781,315 : 10,171,986 = 10,171,986 : x
2. Step 2: Convert to fraction form
   6,781,315/10,171,986 = 10,171,986/x
3. Step 3: Cross multiply
   6,781,315x = 10,171,986 × 10,171,986
4. Step 4: Simplify right side
   6,781,315x = 103,469,299,184,196
5. Step 5: Solve for x
   x = 103,469,299,184,196/6,781,315
6. Step 6: Final answer
   x = 15,257,999.25