Finding the Third Proportional to 14,380.31 and 31,451.63

Step by Step Solution

1. Step 1: Write the proportion equation
   14,380.31 : 31,451.63 = 31,451.63 : x
2. Step 2: Convert to fraction form
   14,380.31/31,451.63 = 31,451.63/x
3. Step 3: Cross multiply
   14,380.31x = 31,451.63 × 31,451.63
4. Step 4: Simplify right side
   14,380.31x = 989,204,715.14
5. Step 5: Solve for x
   x = 989,204,715.14/14,380.31
6. Step 6: Final answer
   x = 68,788.82