Finding the Third Proportional to 12,188 and 28,742

Step by Step Solution

1. Step 1: Write the proportion equation
   12,188 : 28,742 = 28,742 : x
2. Step 2: Convert to fraction form
   12,188/28,742 = 28,742/x
3. Step 3: Cross multiply
   12,188x = 28,742 × 28,742
4. Step 4: Simplify right side
   12,188x = 826,102,564
5. Step 5: Solve for x
   x = 826,102,564/12,188
6. Step 6: Final answer
   x = 67,779.99