Finding the Third Proportional to 11,490.50 and 13,070

Step by Step Solution

1. Step 1: Write the proportion equation
   11,490.50 : 13,070 = 13,070 : x
2. Step 2: Convert to fraction form
   11,490.50/13,070 = 13,070/x
3. Step 3: Cross multiply
   11,490.50x = 13,070 × 13,070
4. Step 4: Simplify right side
   11,490.50x = 170,824,900
5. Step 5: Solve for x
   x = 170,824,900/11,490.50
6. Step 6: Final answer
   x = 14,866.62