Finding the Third Proportional to 14,389.50 and 31,179.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,389.50 : 31,179.75 = 31,179.75 : x
2. Step 2: Convert to fraction form
   14,389.50/31,179.75 = 31,179.75/x
3. Step 3: Cross multiply
   14,389.50x = 31,179.75 × 31,179.75
4. Step 4: Simplify right side
   14,389.50x = 972,176,810.06
5. Step 5: Solve for x
   x = 972,176,810.06/14,389.50
6. Step 6: Final answer
   x = 67,561.54