Finding the Third Proportional to 20,687.63 and 30,256.88

Step by Step Solution

1. Step 1: Write the proportion equation
   20,687.63 : 30,256.88 = 30,256.88 : x
2. Step 2: Convert to fraction form
   20,687.63/30,256.88 = 30,256.88/x
3. Step 3: Cross multiply
   20,687.63x = 30,256.88 × 30,256.88
4. Step 4: Simplify right side
   20,687.63x = 915,478,484.77
5. Step 5: Solve for x
   x = 915,478,484.77/20,687.63
6. Step 6: Final answer
   x = 44,252.47