Finding the Third Proportional to 11,811,867 and 17,956,710

Step by Step Solution

1. Step 1: Write the proportion equation
   11,811,867 : 17,956,710 = 17,956,710 : x
2. Step 2: Convert to fraction form
   11,811,867/17,956,710 = 17,956,710/x
3. Step 3: Cross multiply
   11,811,867x = 17,956,710 × 17,956,710
4. Step 4: Simplify right side
   11,811,867x = 322,443,434,024,100
5. Step 5: Solve for x
   x = 322,443,434,024,100/11,811,867
6. Step 6: Final answer
   x = 27,298,261.49