Finding the Third Proportional to 31,449.50 and 45,878

Step by Step Solution

1. Step 1: Write the proportion equation
   31,449.50 : 45,878 = 45,878 : x
2. Step 2: Convert to fraction form
   31,449.50/45,878 = 45,878/x
3. Step 3: Cross multiply
   31,449.50x = 45,878 × 45,878
4. Step 4: Simplify right side
   31,449.50x = 2,104,790,884
5. Step 5: Solve for x
   x = 2,104,790,884/31,449.50
6. Step 6: Final answer
   x = 66,926.05