Finding the Third Proportional to 12,105,612 and 17,986,918

Step by Step Solution

1. Step 1: Write the proportion equation
   12,105,612 : 17,986,918 = 17,986,918 : x
2. Step 2: Convert to fraction form
   12,105,612/17,986,918 = 17,986,918/x
3. Step 3: Cross multiply
   12,105,612x = 17,986,918 × 17,986,918
4. Step 4: Simplify right side
   12,105,612x = 323,529,219,138,724
5. Step 5: Solve for x
   x = 323,529,219,138,724/12,105,612
6. Step 6: Final answer
   x = 26,725,556.64