Finding the Third Proportional to 47,159 and 72,379

Step by Step Solution

1. Step 1: Write the proportion equation
   47,159 : 72,379 = 72,379 : x
2. Step 2: Convert to fraction form
   47,159/72,379 = 72,379/x
3. Step 3: Cross multiply
   47,159x = 72,379 × 72,379
4. Step 4: Simplify right side
   47,159x = 5,238,719,641
5. Step 5: Solve for x
   x = 5,238,719,641/47,159
6. Step 6: Final answer
   x = 111,086.32