Finding the Third Proportional to 19,420 and 30,798

Step by Step Solution

1. Step 1: Write the proportion equation
   19,420 : 30,798 = 30,798 : x
2. Step 2: Convert to fraction form
   19,420/30,798 = 30,798/x
3. Step 3: Cross multiply
   19,420x = 30,798 × 30,798
4. Step 4: Simplify right side
   19,420x = 948,516,804
5. Step 5: Solve for x
   x = 948,516,804/19,420
6. Step 6: Final answer
   x = 48,842.27