Finding the Third Proportional to 8,995,620 and 12,820,563

Step by Step Solution

1. Step 1: Write the proportion equation
   8,995,620 : 12,820,563 = 12,820,563 : x
2. Step 2: Convert to fraction form
   8,995,620/12,820,563 = 12,820,563/x
3. Step 3: Cross multiply
   8,995,620x = 12,820,563 × 12,820,563
4. Step 4: Simplify right side
   8,995,620x = 164,366,835,636,969
5. Step 5: Solve for x
   x = 164,366,835,636,969/8,995,620
6. Step 6: Final answer
   x = 18,271,874.05