Finding the Third Proportional to 8,307 and 12,922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,307 : 12,922.50 = 12,922.50 : x
2. Step 2: Convert to fraction form
   8,307/12,922.50 = 12,922.50/x
3. Step 3: Cross multiply
   8,307x = 12,922.50 × 12,922.50
4. Step 4: Simplify right side
   8,307x = 166,991,006.25
5. Step 5: Solve for x
   x = 166,991,006.25/8,307
6. Step 6: Final answer
   x = 20,102.44