Finding the Third Proportional to 13,605.47 and 21,023.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,605.47 : 21,023.72 = 21,023.72 : x
2. Step 2: Convert to fraction form
   13,605.47/21,023.72 = 21,023.72/x
3. Step 3: Cross multiply
   13,605.47x = 21,023.72 × 21,023.72
4. Step 4: Simplify right side
   13,605.47x = 441,996,750.08
5. Step 5: Solve for x
   x = 441,996,750.08/13,605.47
6. Step 6: Final answer
   x = 32,486.70