Finding the Third Proportional to 19,847.50 and 42,811

Step by Step Solution

1. Step 1: Write the proportion equation
   19,847.50 : 42,811 = 42,811 : x
2. Step 2: Convert to fraction form
   19,847.50/42,811 = 42,811/x
3. Step 3: Cross multiply
   19,847.50x = 42,811 × 42,811
4. Step 4: Simplify right side
   19,847.50x = 1,832,781,721
5. Step 5: Solve for x
   x = 1,832,781,721/19,847.50
6. Step 6: Final answer
   x = 92,343.20