Finding the Third Proportional to 15,558 and 21,032

Step by Step Solution

1. Step 1: Write the proportion equation
   15,558 : 21,032 = 21,032 : x
2. Step 2: Convert to fraction form
   15,558/21,032 = 21,032/x
3. Step 3: Cross multiply
   15,558x = 21,032 × 21,032
4. Step 4: Simplify right side
   15,558x = 442,345,024
5. Step 5: Solve for x
   x = 442,345,024/15,558
6. Step 6: Final answer
   x = 28,432.00