Finding the Third Proportional to 15,904.50 and 21,598.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,904.50 : 21,598.50 = 21,598.50 : x
2. Step 2: Convert to fraction form
   15,904.50/21,598.50 = 21,598.50/x
3. Step 3: Cross multiply
   15,904.50x = 21,598.50 × 21,598.50
4. Step 4: Simplify right side
   15,904.50x = 466,495,202.25
5. Step 5: Solve for x
   x = 466,495,202.25/15,904.50
6. Step 6: Final answer
   x = 29,331.02