Finding the Third Proportional to 17,690.31 and 28,406.44

Step by Step Solution

1. Step 1: Write the proportion equation
   17,690.31 : 28,406.44 = 28,406.44 : x
2. Step 2: Convert to fraction form
   17,690.31/28,406.44 = 28,406.44/x
3. Step 3: Cross multiply
   17,690.31x = 28,406.44 × 28,406.44
4. Step 4: Simplify right side
   17,690.31x = 806,925,691.44
5. Step 5: Solve for x
   x = 806,925,691.44/17,690.31
6. Step 6: Final answer
   x = 45,613.99