Finding the Third Proportional to 12,858.50 and 28,051

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858.50 : 28,051 = 28,051 : x
2. Step 2: Convert to fraction form
   12,858.50/28,051 = 28,051/x
3. Step 3: Cross multiply
   12,858.50x = 28,051 × 28,051
4. Step 4: Simplify right side
   12,858.50x = 786,858,601
5. Step 5: Solve for x
   x = 786,858,601/12,858.50
6. Step 6: Final answer
   x = 61,193.65