Finding the Third Proportional to 12,353,040 and 17,820,891

Step by Step Solution

1. Step 1: Write the proportion equation
   12,353,040 : 17,820,891 = 17,820,891 : x
2. Step 2: Convert to fraction form
   12,353,040/17,820,891 = 17,820,891/x
3. Step 3: Cross multiply
   12,353,040x = 17,820,891 × 17,820,891
4. Step 4: Simplify right side
   12,353,040x = 317,584,156,033,881
5. Step 5: Solve for x
   x = 317,584,156,033,881/12,353,040
6. Step 6: Final answer
   x = 25,708,987.91