Finding the Third Proportional to 9,638,828 and 12,850,338

Step by Step Solution

1. Step 1: Write the proportion equation
   9,638,828 : 12,850,338 = 12,850,338 : x
2. Step 2: Convert to fraction form
   9,638,828/12,850,338 = 12,850,338/x
3. Step 3: Cross multiply
   9,638,828x = 12,850,338 × 12,850,338
4. Step 4: Simplify right side
   9,638,828x = 165,131,186,714,244
5. Step 5: Solve for x
   x = 165,131,186,714,244/9,638,828
6. Step 6: Final answer
   x = 17,131,873.99