Finding the Third Proportional to 7,749,696 and 10,638,216

Step by Step Solution

1. Step 1: Write the proportion equation
   7,749,696 : 10,638,216 = 10,638,216 : x
2. Step 2: Convert to fraction form
   7,749,696/10,638,216 = 10,638,216/x
3. Step 3: Cross multiply
   7,749,696x = 10,638,216 × 10,638,216
4. Step 4: Simplify right side
   7,749,696x = 113,171,639,662,656
5. Step 5: Solve for x
   x = 113,171,639,662,656/7,749,696
6. Step 6: Final answer
   x = 14,603,365.04