Finding the Third Proportional to 13,607.02 and 20,615.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,607.02 : 20,615.63 = 20,615.63 : x
2. Step 2: Convert to fraction form
   13,607.02/20,615.63 = 20,615.63/x
3. Step 3: Cross multiply
   13,607.02x = 20,615.63 × 20,615.63
4. Step 4: Simplify right side
   13,607.02x = 425,003,994.14
5. Step 5: Solve for x
   x = 425,003,994.14/13,607.02
6. Step 6: Final answer
   x = 31,234.18