Finding the Third Proportional to 15,012.84 and 21,004.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,012.84 : 21,004.31 = 21,004.31 : x
2. Step 2: Convert to fraction form
   15,012.84/21,004.31 = 21,004.31/x
3. Step 3: Cross multiply
   15,012.84x = 21,004.31 × 21,004.31
4. Step 4: Simplify right side
   15,012.84x = 441,181,143.60
5. Step 5: Solve for x
   x = 441,181,143.60/15,012.84
6. Step 6: Final answer
   x = 29,386.91