Finding the Third Proportional to 90,563.06 and 196,685.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,563.06 : 196,685.72 = 196,685.72 : x
2. Step 2: Convert to fraction form
   90,563.06/196,685.72 = 196,685.72/x
3. Step 3: Cross multiply
   90,563.06x = 196,685.72 × 196,685.72
4. Step 4: Simplify right side
   90,563.06x = 38,685,271,960.20
5. Step 5: Solve for x
   x = 38,685,271,960.20/90,563.06
6. Step 6: Final answer
   x = 427,163.91