Finding the Third Proportional to 15,422.91 and 21,277.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15,422.91 : 21,277.69 = 21,277.69 : x
2. Step 2: Convert to fraction form
   15,422.91/21,277.69 = 21,277.69/x
3. Step 3: Cross multiply
   15,422.91x = 21,277.69 × 21,277.69
4. Step 4: Simplify right side
   15,422.91x = 452,739,985.35
5. Step 5: Solve for x
   x = 452,739,985.35/15,422.91
6. Step 6: Final answer
   x = 29,355.04