Finding the Third Proportional to 45,608 and 72,857

Step by Step Solution

1. Step 1: Write the proportion equation
   45,608 : 72,857 = 72,857 : x
2. Step 2: Convert to fraction form
   45,608/72,857 = 72,857/x
3. Step 3: Cross multiply
   45,608x = 72,857 × 72,857
4. Step 4: Simplify right side
   45,608x = 5,308,142,449
5. Step 5: Solve for x
   x = 5,308,142,449/45,608
6. Step 6: Final answer
   x = 116,386.21