Finding the Third Proportional to 6,606,390 and 9,786,789

Step by Step Solution

1. Step 1: Write the proportion equation
   6,606,390 : 9,786,789 = 9,786,789 : x
2. Step 2: Convert to fraction form
   6,606,390/9,786,789 = 9,786,789/x
3. Step 3: Cross multiply
   6,606,390x = 9,786,789 × 9,786,789
4. Step 4: Simplify right side
   6,606,390x = 95,781,238,930,521
5. Step 5: Solve for x
   x = 95,781,238,930,521/6,606,390
6. Step 6: Final answer
   x = 14,498,271.97