Finding the Third Proportional to 4,379.50 and 9,374.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,379.50 : 9,374.50 = 9,374.50 : x
2. Step 2: Convert to fraction form
   4,379.50/9,374.50 = 9,374.50/x
3. Step 3: Cross multiply
   4,379.50x = 9,374.50 × 9,374.50
4. Step 4: Simplify right side
   4,379.50x = 87,881,250.25
5. Step 5: Solve for x
   x = 87,881,250.25/4,379.50
6. Step 6: Final answer
   x = 20,066.50