Finding the Third Proportional to 5,320,210 and 8,254,770

Step by Step Solution

1. Step 1: Write the proportion equation
   5,320,210 : 8,254,770 = 8,254,770 : x
2. Step 2: Convert to fraction form
   5,320,210/8,254,770 = 8,254,770/x
3. Step 3: Cross multiply
   5,320,210x = 8,254,770 × 8,254,770
4. Step 4: Simplify right side
   5,320,210x = 68,141,227,752,900
5. Step 5: Solve for x
   x = 68,141,227,752,900/5,320,210
6. Step 6: Final answer
   x = 12,807,995.88