Finding the Third Proportional to 5,479,644 and 8,726,826

Step by Step Solution

1. Step 1: Write the proportion equation
   5,479,644 : 8,726,826 = 8,726,826 : x
2. Step 2: Convert to fraction form
   5,479,644/8,726,826 = 8,726,826/x
3. Step 3: Cross multiply
   5,479,644x = 8,726,826 × 8,726,826
4. Step 4: Simplify right side
   5,479,644x = 76,157,492,034,276
5. Step 5: Solve for x
   x = 76,157,492,034,276/5,479,644
6. Step 6: Final answer
   x = 13,898,255.44