Finding the Third Proportional to 19,818 and 30,672

Step by Step Solution

1. Step 1: Write the proportion equation
   19,818 : 30,672 = 30,672 : x
2. Step 2: Convert to fraction form
   19,818/30,672 = 30,672/x
3. Step 3: Cross multiply
   19,818x = 30,672 × 30,672
4. Step 4: Simplify right side
   19,818x = 940,771,584
5. Step 5: Solve for x
   x = 940,771,584/19,818
6. Step 6: Final answer
   x = 47,470.56