Finding the Third Proportional to 21,613.50 and 28,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,613.50 : 28,633.50 = 28,633.50 : x
2. Step 2: Convert to fraction form
   21,613.50/28,633.50 = 28,633.50/x
3. Step 3: Cross multiply
   21,613.50x = 28,633.50 × 28,633.50
4. Step 4: Simplify right side
   21,613.50x = 819,877,322.25
5. Step 5: Solve for x
   x = 819,877,322.25/21,613.50
6. Step 6: Final answer
   x = 37,933.57