Finding the Third Proportional to 13,310,696 and 21,058,707

Step by Step Solution

1. Step 1: Write the proportion equation
   13,310,696 : 21,058,707 = 21,058,707 : x
2. Step 2: Convert to fraction form
   13,310,696/21,058,707 = 21,058,707/x
3. Step 3: Cross multiply
   13,310,696x = 21,058,707 × 21,058,707
4. Step 4: Simplify right side
   13,310,696x = 443,469,140,511,849
5. Step 5: Solve for x
   x = 443,469,140,511,849/13,310,696
6. Step 6: Final answer
   x = 33,316,750.72