Finding the Third Proportional to 31,570 and 52,611

Step by Step Solution

1. Step 1: Write the proportion equation
   31,570 : 52,611 = 52,611 : x
2. Step 2: Convert to fraction form
   31,570/52,611 = 52,611/x
3. Step 3: Cross multiply
   31,570x = 52,611 × 52,611
4. Step 4: Simplify right side
   31,570x = 2,767,917,321
5. Step 5: Solve for x
   x = 2,767,917,321/31,570
6. Step 6: Final answer
   x = 87,675.56