Finding the Third Proportional to 12,352,986 and 17,820,810

Step by Step Solution

1. Step 1: Write the proportion equation
   12,352,986 : 17,820,810 = 17,820,810 : x
2. Step 2: Convert to fraction form
   12,352,986/17,820,810 = 17,820,810/x
3. Step 3: Cross multiply
   12,352,986x = 17,820,810 × 17,820,810
4. Step 4: Simplify right side
   12,352,986x = 317,581,269,056,100
5. Step 5: Solve for x
   x = 317,581,269,056,100/12,352,986
6. Step 6: Final answer
   x = 25,708,866.59