Finding the Third Proportional to 16,321.50 and 21,702.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,321.50 : 21,702.94 = 21,702.94 : x
2. Step 2: Convert to fraction form
   16,321.50/21,702.94 = 21,702.94/x
3. Step 3: Cross multiply
   16,321.50x = 21,702.94 × 21,702.94
4. Step 4: Simplify right side
   16,321.50x = 471,017,496.13
5. Step 5: Solve for x
   x = 471,017,496.13/16,321.50
6. Step 6: Final answer
   x = 28,858.71