Finding the Third Proportional to 9,638,846 and 12,850,363

Step by Step Solution

1. Step 1: Write the proportion equation
   9,638,846 : 12,850,363 = 12,850,363 : x
2. Step 2: Convert to fraction form
   9,638,846/12,850,363 = 12,850,363/x
3. Step 3: Cross multiply
   9,638,846x = 12,850,363 × 12,850,363
4. Step 4: Simplify right side
   9,638,846x = 165,131,829,231,769
5. Step 5: Solve for x
   x = 165,131,829,231,769/9,638,846
6. Step 6: Final answer
   x = 17,131,908.66