Finding the Third Proportional to 30,141.28 and 64,279.41

Step by Step Solution

1. Step 1: Write the proportion equation
   30,141.28 : 64,279.41 = 64,279.41 : x
2. Step 2: Convert to fraction form
   30,141.28/64,279.41 = 64,279.41/x
3. Step 3: Cross multiply
   30,141.28x = 64,279.41 × 64,279.41
4. Step 4: Simplify right side
   30,141.28x = 4,131,842,067.85
5. Step 5: Solve for x
   x = 4,131,842,067.85/30,141.28
6. Step 6: Final answer
   x = 137,082.50