Finding the Third Proportional to 5,619,478 and 8,367,009

Step by Step Solution

1. Step 1: Write the proportion equation
   5,619,478 : 8,367,009 = 8,367,009 : x
2. Step 2: Convert to fraction form
   5,619,478/8,367,009 = 8,367,009/x
3. Step 3: Cross multiply
   5,619,478x = 8,367,009 × 8,367,009
4. Step 4: Simplify right side
   5,619,478x = 70,006,839,606,081
5. Step 5: Solve for x
   x = 70,006,839,606,081/5,619,478
6. Step 6: Final answer
   x = 12,457,890.15