Finding the Third Proportional to 19,220 and 42,084

Step by Step Solution

1. Step 1: Write the proportion equation
   19,220 : 42,084 = 42,084 : x
2. Step 2: Convert to fraction form
   19,220/42,084 = 42,084/x
3. Step 3: Cross multiply
   19,220x = 42,084 × 42,084
4. Step 4: Simplify right side
   19,220x = 1,771,063,056
5. Step 5: Solve for x
   x = 1,771,063,056/19,220
6. Step 6: Final answer
   x = 92,146.88