Finding the Third Proportional to 47,187 and 72,418

Step by Step Solution

1. Step 1: Write the proportion equation
   47,187 : 72,418 = 72,418 : x
2. Step 2: Convert to fraction form
   47,187/72,418 = 72,418/x
3. Step 3: Cross multiply
   47,187x = 72,418 × 72,418
4. Step 4: Simplify right side
   47,187x = 5,244,366,724
5. Step 5: Solve for x
   x = 5,244,366,724/47,187
6. Step 6: Final answer
   x = 111,140.08