Finding the Third Proportional to 13,051.13 and 21,009.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,051.13 : 21,009.38 = 21,009.38 : x
2. Step 2: Convert to fraction form
   13,051.13/21,009.38 = 21,009.38/x
3. Step 3: Cross multiply
   13,051.13x = 21,009.38 × 21,009.38
4. Step 4: Simplify right side
   13,051.13x = 441,393,837.89
5. Step 5: Solve for x
   x = 441,393,837.89/13,051.13
6. Step 6: Final answer
   x = 33,820.37