Finding the Third Proportional to 13,669.31 and 21,415.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,669.31 : 21,415.22 = 21,415.22 : x
2. Step 2: Convert to fraction form
   13,669.31/21,415.22 = 21,415.22/x
3. Step 3: Cross multiply
   13,669.31x = 21,415.22 × 21,415.22
4. Step 4: Simplify right side
   13,669.31x = 458,611,594.11
5. Step 5: Solve for x
   x = 458,611,594.11/13,669.31
6. Step 6: Final answer
   x = 33,550.45