Finding the Third Proportional to 4,920.12 and 7,404.86

Step by Step Solution

1. Step 1: Write the proportion equation
   4,920.12 : 7,404.86 = 7,404.86 : x
2. Step 2: Convert to fraction form
   4,920.12/7,404.86 = 7,404.86/x
3. Step 3: Cross multiply
   4,920.12x = 7,404.86 × 7,404.86
4. Step 4: Simplify right side
   4,920.12x = 54,831,884.51
5. Step 5: Solve for x
   x = 54,831,884.51/4,920.12
6. Step 6: Final answer
   x = 11,144.43