Finding the Third Proportional to 10,921,768 and 16,958,126

Step by Step Solution

1. Step 1: Write the proportion equation
   10,921,768 : 16,958,126 = 16,958,126 : x
2. Step 2: Convert to fraction form
   10,921,768/16,958,126 = 16,958,126/x
3. Step 3: Cross multiply
   10,921,768x = 16,958,126 × 16,958,126
4. Step 4: Simplify right side
   10,921,768x = 287,578,037,431,876
5. Step 5: Solve for x
   x = 287,578,037,431,876/10,921,768
6. Step 6: Final answer
   x = 26,330,722.04