Finding the Third Proportional to 13,685.84 and 21,451.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,685.84 : 21,451.39 = 21,451.39 : x
2. Step 2: Convert to fraction form
   13,685.84/21,451.39 = 21,451.39/x
3. Step 3: Cross multiply
   13,685.84x = 21,451.39 × 21,451.39
4. Step 4: Simplify right side
   13,685.84x = 460,162,327.34
5. Step 5: Solve for x
   x = 460,162,327.34/13,685.84
6. Step 6: Final answer
   x = 33,623.25