Finding the Third Proportional to 8,917.50 and 19,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,917.50 : 19,495.50 = 19,495.50 : x
2. Step 2: Convert to fraction form
   8,917.50/19,495.50 = 19,495.50/x
3. Step 3: Cross multiply
   8,917.50x = 19,495.50 × 19,495.50
4. Step 4: Simplify right side
   8,917.50x = 380,074,520.25
5. Step 5: Solve for x
   x = 380,074,520.25/8,917.50
6. Step 6: Final answer
   x = 42,621.20