Finding the Third Proportional to 17,921 and 37,815

Step by Step Solution

1. Step 1: Write the proportion equation
   17,921 : 37,815 = 37,815 : x
2. Step 2: Convert to fraction form
   17,921/37,815 = 37,815/x
3. Step 3: Cross multiply
   17,921x = 37,815 × 37,815
4. Step 4: Simplify right side
   17,921x = 1,429,974,225
5. Step 5: Solve for x
   x = 1,429,974,225/17,921
6. Step 6: Final answer
   x = 79,793.22