Finding the Third Proportional to 7,872,250 and 12,854,673

Step by Step Solution

1. Step 1: Write the proportion equation
   7,872,250 : 12,854,673 = 12,854,673 : x
2. Step 2: Convert to fraction form
   7,872,250/12,854,673 = 12,854,673/x
3. Step 3: Cross multiply
   7,872,250x = 12,854,673 × 12,854,673
4. Step 4: Simplify right side
   7,872,250x = 165,242,617,936,929
5. Step 5: Solve for x
   x = 165,242,617,936,929/7,872,250
6. Step 6: Final answer
   x = 20,990,519.60