Finding the Third Proportional to 17,378.72 and 38,141.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,378.72 : 38,141.30 = 38,141.30 : x
2. Step 2: Convert to fraction form
   17,378.72/38,141.30 = 38,141.30/x
3. Step 3: Cross multiply
   17,378.72x = 38,141.30 × 38,141.30
4. Step 4: Simplify right side
   17,378.72x = 1,454,758,527.31
5. Step 5: Solve for x
   x = 1,454,758,527.31/17,378.72
6. Step 6: Final answer
   x = 83,709.19