Finding the Third Proportional to 59,172 and 89,374

Step by Step Solution

1. Step 1: Write the proportion equation
   59,172 : 89,374 = 89,374 : x
2. Step 2: Convert to fraction form
   59,172/89,374 = 89,374/x
3. Step 3: Cross multiply
   59,172x = 89,374 × 89,374
4. Step 4: Simplify right side
   59,172x = 7,987,711,876
5. Step 5: Solve for x
   x = 7,987,711,876/59,172
6. Step 6: Final answer
   x = 134,991.41