Finding the Third Proportional to 14,555.36 and 31,185.70

Step by Step Solution

1. Step 1: Write the proportion equation
   14,555.36 : 31,185.70 = 31,185.70 : x
2. Step 2: Convert to fraction form
   14,555.36/31,185.70 = 31,185.70/x
3. Step 3: Cross multiply
   14,555.36x = 31,185.70 × 31,185.70
4. Step 4: Simplify right side
   14,555.36x = 972,548,079.40
5. Step 5: Solve for x
   x = 972,548,079.40/14,555.36
6. Step 6: Final answer
   x = 66,817.20