Finding the Third Proportional to 7,290 and 10,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,290 : 10,936.50 = 10,936.50 : x
2. Step 2: Convert to fraction form
   7,290/10,936.50 = 10,936.50/x
3. Step 3: Cross multiply
   7,290x = 10,936.50 × 10,936.50
4. Step 4: Simplify right side
   7,290x = 119,607,032.25
5. Step 5: Solve for x
   x = 119,607,032.25/7,290
6. Step 6: Final answer
   x = 16,407.00