Finding the Third Proportional to 13,460 and 18,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,460 : 18,861.50 = 18,861.50 : x
2. Step 2: Convert to fraction form
   13,460/18,861.50 = 18,861.50/x
3. Step 3: Cross multiply
   13,460x = 18,861.50 × 18,861.50
4. Step 4: Simplify right side
   13,460x = 355,756,182.25
5. Step 5: Solve for x
   x = 355,756,182.25/13,460
6. Step 6: Final answer
   x = 26,430.62