Finding the Third Proportional to 14,278.50 and 31,614.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,278.50 : 31,614.75 = 31,614.75 : x
2. Step 2: Convert to fraction form
   14,278.50/31,614.75 = 31,614.75/x
3. Step 3: Cross multiply
   14,278.50x = 31,614.75 × 31,614.75
4. Step 4: Simplify right side
   14,278.50x = 999,492,417.56
5. Step 5: Solve for x
   x = 999,492,417.56/14,278.50
6. Step 6: Final answer
   x = 69,999.82