Finding the Third Proportional to 19,842 and 43,140

Step by Step Solution

1. Step 1: Write the proportion equation
   19,842 : 43,140 = 43,140 : x
2. Step 2: Convert to fraction form
   19,842/43,140 = 43,140/x
3. Step 3: Cross multiply
   19,842x = 43,140 × 43,140
4. Step 4: Simplify right side
   19,842x = 1,861,059,600
5. Step 5: Solve for x
   x = 1,861,059,600/19,842
6. Step 6: Final answer
   x = 93,793.95