Finding the Third Proportional to 13,138 and 28,117

Step by Step Solution

1. Step 1: Write the proportion equation
   13,138 : 28,117 = 28,117 : x
2. Step 2: Convert to fraction form
   13,138/28,117 = 28,117/x
3. Step 3: Cross multiply
   13,138x = 28,117 × 28,117
4. Step 4: Simplify right side
   13,138x = 790,565,689
5. Step 5: Solve for x
   x = 790,565,689/13,138
6. Step 6: Final answer
   x = 60,173.98