Finding the Third Proportional to 6,415,323 and 8,479,908

Step by Step Solution

1. Step 1: Write the proportion equation
   6,415,323 : 8,479,908 = 8,479,908 : x
2. Step 2: Convert to fraction form
   6,415,323/8,479,908 = 8,479,908/x
3. Step 3: Cross multiply
   6,415,323x = 8,479,908 × 8,479,908
4. Step 4: Simplify right side
   6,415,323x = 71,908,839,688,464
5. Step 5: Solve for x
   x = 71,908,839,688,464/6,415,323
6. Step 6: Final answer
   x = 11,208,919.60