Finding the Third Proportional to 13,434.50 and 21,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,434.50 : 21,704.50 = 21,704.50 : x
2. Step 2: Convert to fraction form
   13,434.50/21,704.50 = 21,704.50/x
3. Step 3: Cross multiply
   13,434.50x = 21,704.50 × 21,704.50
4. Step 4: Simplify right side
   13,434.50x = 471,085,320.25
5. Step 5: Solve for x
   x = 471,085,320.25/13,434.50
6. Step 6: Final answer
   x = 35,065.34