Finding the Third Proportional to 13,987.48 and 28,621.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,987.48 : 28,621.20 = 28,621.20 : x
2. Step 2: Convert to fraction form
   13,987.48/28,621.20 = 28,621.20/x
3. Step 3: Cross multiply
   13,987.48x = 28,621.20 × 28,621.20
4. Step 4: Simplify right side
   13,987.48x = 819,172,821.12
5. Step 5: Solve for x
   x = 819,172,821.12/13,987.48
6. Step 6: Final answer
   x = 58,564.73