Finding the Third Proportional to 14,728.50 and 21,030.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,728.50 : 21,030.75 = 21,030.75 : x
2. Step 2: Convert to fraction form
   14,728.50/21,030.75 = 21,030.75/x
3. Step 3: Cross multiply
   14,728.50x = 21,030.75 × 21,030.75
4. Step 4: Simplify right side
   14,728.50x = 442,292,445.56
5. Step 5: Solve for x
   x = 442,292,445.56/14,728.50
6. Step 6: Final answer
   x = 30,029.70