Finding the Third Proportional to 59,859 and 91,611

Step by Step Solution

1. Step 1: Write the proportion equation
   59,859 : 91,611 = 91,611 : x
2. Step 2: Convert to fraction form
   59,859/91,611 = 91,611/x
3. Step 3: Cross multiply
   59,859x = 91,611 × 91,611
4. Step 4: Simplify right side
   59,859x = 8,392,575,321
5. Step 5: Solve for x
   x = 8,392,575,321/59,859
6. Step 6: Final answer
   x = 140,205.74