Finding the Third Proportional to 9,392 and 19,979

Step by Step Solution

1. Step 1: Write the proportion equation
   9,392 : 19,979 = 19,979 : x
2. Step 2: Convert to fraction form
   9,392/19,979 = 19,979/x
3. Step 3: Cross multiply
   9,392x = 19,979 × 19,979
4. Step 4: Simplify right side
   9,392x = 399,160,441
5. Step 5: Solve for x
   x = 399,160,441/9,392
6. Step 6: Final answer
   x = 42,500.05