Finding the Third Proportional to 59,486 and 87,243

Step by Step Solution

1. Step 1: Write the proportion equation
   59,486 : 87,243 = 87,243 : x
2. Step 2: Convert to fraction form
   59,486/87,243 = 87,243/x
3. Step 3: Cross multiply
   59,486x = 87,243 × 87,243
4. Step 4: Simplify right side
   59,486x = 7,611,341,049
5. Step 5: Solve for x
   x = 7,611,341,049/59,486
6. Step 6: Final answer
   x = 127,951.80