Finding the Third Proportional to 19,114.88 and 40,690.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,114.88 : 40,690.69 = 40,690.69 : x
2. Step 2: Convert to fraction form
   19,114.88/40,690.69 = 40,690.69/x
3. Step 3: Cross multiply
   19,114.88x = 40,690.69 × 40,690.69
4. Step 4: Simplify right side
   19,114.88x = 1,655,732,049.22
5. Step 5: Solve for x
   x = 1,655,732,049.22/19,114.88
6. Step 6: Final answer
   x = 86,620.08