Finding the Third Proportional to 13,420.50 and 20,897.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,420.50 : 20,897.25 = 20,897.25 : x
2. Step 2: Convert to fraction form
   13,420.50/20,897.25 = 20,897.25/x
3. Step 3: Cross multiply
   13,420.50x = 20,897.25 × 20,897.25
4. Step 4: Simplify right side
   13,420.50x = 436,695,057.56
5. Step 5: Solve for x
   x = 436,695,057.56/13,420.50
6. Step 6: Final answer
   x = 32,539.40