Finding the Third Proportional to 7,155 and 17,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155 : 17,401.50 = 17,401.50 : x
2. Step 2: Convert to fraction form
   7,155/17,401.50 = 17,401.50/x
3. Step 3: Cross multiply
   7,155x = 17,401.50 × 17,401.50
4. Step 4: Simplify right side
   7,155x = 302,812,202.25
5. Step 5: Solve for x
   x = 302,812,202.25/7,155
6. Step 6: Final answer
   x = 42,321.76