Finding the Third Proportional to 4,900.50 and 9,554.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,900.50 : 9,554.63 = 9,554.63 : x
2. Step 2: Convert to fraction form
   4,900.50/9,554.63 = 9,554.63/x
3. Step 3: Cross multiply
   4,900.50x = 9,554.63 × 9,554.63
4. Step 4: Simplify right side
   4,900.50x = 91,290,858.89
5. Step 5: Solve for x
   x = 91,290,858.89/4,900.50
6. Step 6: Final answer
   x = 18,628.89