Finding the Third Proportional to 15,088 and 21,103.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,088 : 21,103.50 = 21,103.50 : x
2. Step 2: Convert to fraction form
   15,088/21,103.50 = 21,103.50/x
3. Step 3: Cross multiply
   15,088x = 21,103.50 × 21,103.50
4. Step 4: Simplify right side
   15,088x = 445,357,712.25
5. Step 5: Solve for x
   x = 445,357,712.25/15,088
6. Step 6: Final answer
   x = 29,517.35