Finding the Third Proportional to 7,143.19 and 15,670.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,143.19 : 15,670.69 = 15,670.69 : x
2. Step 2: Convert to fraction form
   7,143.19/15,670.69 = 15,670.69/x
3. Step 3: Cross multiply
   7,143.19x = 15,670.69 × 15,670.69
4. Step 4: Simplify right side
   7,143.19x = 245,570,446.72
5. Step 5: Solve for x
   x = 245,570,446.72/7,143.19
6. Step 6: Final answer
   x = 34,378.27