Finding the Third Proportional to 8,216,739 and 12,822,535

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216,739 : 12,822,535 = 12,822,535 : x
2. Step 2: Convert to fraction form
   8,216,739/12,822,535 = 12,822,535/x
3. Step 3: Cross multiply
   8,216,739x = 12,822,535 × 12,822,535
4. Step 4: Simplify right side
   8,216,739x = 164,417,403,826,225
5. Step 5: Solve for x
   x = 164,417,403,826,225/8,216,739
6. Step 6: Final answer
   x = 20,010,055.55