Finding the Third Proportional to 4,814,686 and 7,479,123

Step by Step Solution

1. Step 1: Write the proportion equation
   4,814,686 : 7,479,123 = 7,479,123 : x
2. Step 2: Convert to fraction form
   4,814,686/7,479,123 = 7,479,123/x
3. Step 3: Cross multiply
   4,814,686x = 7,479,123 × 7,479,123
4. Step 4: Simplify right side
   4,814,686x = 55,937,280,849,129
5. Step 5: Solve for x
   x = 55,937,280,849,129/4,814,686
6. Step 6: Final answer
   x = 11,618,053.77