Finding the Third Proportional to 59,208 and 91,680

Step by Step Solution

1. Step 1: Write the proportion equation
   59,208 : 91,680 = 91,680 : x
2. Step 2: Convert to fraction form
   59,208/91,680 = 91,680/x
3. Step 3: Cross multiply
   59,208x = 91,680 × 91,680
4. Step 4: Simplify right side
   59,208x = 8,405,222,400
5. Step 5: Solve for x
   x = 8,405,222,400/59,208
6. Step 6: Final answer
   x = 141,960.92