Finding the Third Proportional to 81,519 and 124,710

Step by Step Solution

1. Step 1: Write the proportion equation
   81,519 : 124,710 = 124,710 : x
2. Step 2: Convert to fraction form
   81,519/124,710 = 124,710/x
3. Step 3: Cross multiply
   81,519x = 124,710 × 124,710
4. Step 4: Simplify right side
   81,519x = 15,552,584,100
5. Step 5: Solve for x
   x = 15,552,584,100/81,519
6. Step 6: Final answer
   x = 190,784.78