Finding the Third Proportional to 8,506 and 12,470.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,506 : 12,470.50 = 12,470.50 : x
2. Step 2: Convert to fraction form
   8,506/12,470.50 = 12,470.50/x
3. Step 3: Cross multiply
   8,506x = 12,470.50 × 12,470.50
4. Step 4: Simplify right side
   8,506x = 155,513,370.25
5. Step 5: Solve for x
   x = 155,513,370.25/8,506
6. Step 6: Final answer
   x = 18,282.79