Finding the Third Proportional to 4,279,774 and 8,709,016

Step by Step Solution

1. Step 1: Write the proportion equation
   4,279,774 : 8,709,016 = 8,709,016 : x
2. Step 2: Convert to fraction form
   4,279,774/8,709,016 = 8,709,016/x
3. Step 3: Cross multiply
   4,279,774x = 8,709,016 × 8,709,016
4. Step 4: Simplify right side
   4,279,774x = 75,846,959,688,256
5. Step 5: Solve for x
   x = 75,846,959,688,256/4,279,774
6. Step 6: Final answer
   x = 17,722,188.06