Finding the Third Proportional to 9,638,836 and 12,850,348

Step by Step Solution

1. Step 1: Write the proportion equation
   9,638,836 : 12,850,348 = 12,850,348 : x
2. Step 2: Convert to fraction form
   9,638,836/12,850,348 = 12,850,348/x
3. Step 3: Cross multiply
   9,638,836x = 12,850,348 × 12,850,348
4. Step 4: Simplify right side
   9,638,836x = 165,131,443,721,104
5. Step 5: Solve for x
   x = 165,131,443,721,104/9,638,836
6. Step 6: Final answer
   x = 17,131,886.44