Finding the Third Proportional to 19,785.50 and 42,692

Step by Step Solution

1. Step 1: Write the proportion equation
   19,785.50 : 42,692 = 42,692 : x
2. Step 2: Convert to fraction form
   19,785.50/42,692 = 42,692/x
3. Step 3: Cross multiply
   19,785.50x = 42,692 × 42,692
4. Step 4: Simplify right side
   19,785.50x = 1,822,606,864
5. Step 5: Solve for x
   x = 1,822,606,864/19,785.50
6. Step 6: Final answer
   x = 92,118.31