Finding the Third Proportional to 4,858.45 and 7,428.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,858.45 : 7,428.52 = 7,428.52 : x
2. Step 2: Convert to fraction form
   4,858.45/7,428.52 = 7,428.52/x
3. Step 3: Cross multiply
   4,858.45x = 7,428.52 × 7,428.52
4. Step 4: Simplify right side
   4,858.45x = 55,182,844.39
5. Step 5: Solve for x
   x = 55,182,844.39/4,858.45
6. Step 6: Final answer
   x = 11,358.11