Finding the Third Proportional to 4,839.12 and 7,699.43

Step by Step Solution

1. Step 1: Write the proportion equation
   4,839.12 : 7,699.43 = 7,699.43 : x
2. Step 2: Convert to fraction form
   4,839.12/7,699.43 = 7,699.43/x
3. Step 3: Cross multiply
   4,839.12x = 7,699.43 × 7,699.43
4. Step 4: Simplify right side
   4,839.12x = 59,281,217.51
5. Step 5: Solve for x
   x = 59,281,217.51/4,839.12
6. Step 6: Final answer
   x = 12,250.42