Finding the Third Proportional to 61,319 and 131,386

Step by Step Solution

1. Step 1: Write the proportion equation
   61,319 : 131,386 = 131,386 : x
2. Step 2: Convert to fraction form
   61,319/131,386 = 131,386/x
3. Step 3: Cross multiply
   61,319x = 131,386 × 131,386
4. Step 4: Simplify right side
   61,319x = 17,262,280,996
5. Step 5: Solve for x
   x = 17,262,280,996/61,319
6. Step 6: Final answer
   x = 281,516.02