Finding the Third Proportional to 7,749,762 and 10,638,315

Step by Step Solution

1. Step 1: Write the proportion equation
   7,749,762 : 10,638,315 = 10,638,315 : x
2. Step 2: Convert to fraction form
   7,749,762/10,638,315 = 10,638,315/x
3. Step 3: Cross multiply
   7,749,762x = 10,638,315 × 10,638,315
4. Step 4: Simplify right side
   7,749,762x = 113,173,746,039,225
5. Step 5: Solve for x
   x = 113,173,746,039,225/7,749,762
6. Step 6: Final answer
   x = 14,603,512.47