Finding the Third Proportional to 19,350 and 42,216

Step by Step Solution

1. Step 1: Write the proportion equation
   19,350 : 42,216 = 42,216 : x
2. Step 2: Convert to fraction form
   19,350/42,216 = 42,216/x
3. Step 3: Cross multiply
   19,350x = 42,216 × 42,216
4. Step 4: Simplify right side
   19,350x = 1,782,190,656
5. Step 5: Solve for x
   x = 1,782,190,656/19,350
6. Step 6: Final answer
   x = 92,102.88