Finding the Third Proportional to 21,809.25 and 29,426.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,809.25 : 29,426.63 = 29,426.63 : x
2. Step 2: Convert to fraction form
   21,809.25/29,426.63 = 29,426.63/x
3. Step 3: Cross multiply
   21,809.25x = 29,426.63 × 29,426.63
4. Step 4: Simplify right side
   21,809.25x = 865,926,258.89
5. Step 5: Solve for x
   x = 865,926,258.89/21,809.25
6. Step 6: Final answer
   x = 39,704.54