Finding the Third Proportional to 8,253 and 13,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,253 : 13,156.50 = 13,156.50 : x
2. Step 2: Convert to fraction form
   8,253/13,156.50 = 13,156.50/x
3. Step 3: Cross multiply
   8,253x = 13,156.50 × 13,156.50
4. Step 4: Simplify right side
   8,253x = 173,093,492.25
5. Step 5: Solve for x
   x = 173,093,492.25/8,253
6. Step 6: Final answer
   x = 20,973.40