Finding the Third Proportional to 90,491.63 and 194,857.88

Step by Step Solution

1. Step 1: Write the proportion equation
   90,491.63 : 194,857.88 = 194,857.88 : x
2. Step 2: Convert to fraction form
   90,491.63/194,857.88 = 194,857.88/x
3. Step 3: Cross multiply
   90,491.63x = 194,857.88 × 194,857.88
4. Step 4: Simplify right side
   90,491.63x = 37,969,591,449.52
5. Step 5: Solve for x
   x = 37,969,591,449.52/90,491.63
6. Step 6: Final answer
   x = 419,592.33