Finding the Third Proportional to 13,290.56 and 21,414

Step by Step Solution

1. Step 1: Write the proportion equation
   13,290.56 : 21,414 = 21,414 : x
2. Step 2: Convert to fraction form
   13,290.56/21,414 = 21,414/x
3. Step 3: Cross multiply
   13,290.56x = 21,414 × 21,414
4. Step 4: Simplify right side
   13,290.56x = 458,559,396
5. Step 5: Solve for x
   x = 458,559,396/13,290.56
6. Step 6: Final answer
   x = 34,502.63