Finding the Third Proportional to 45,707.25 and 72,987.75

Step by Step Solution

1. Step 1: Write the proportion equation
   45,707.25 : 72,987.75 = 72,987.75 : x
2. Step 2: Convert to fraction form
   45,707.25/72,987.75 = 72,987.75/x
3. Step 3: Cross multiply
   45,707.25x = 72,987.75 × 72,987.75
4. Step 4: Simplify right side
   45,707.25x = 5,327,211,650.06
5. Step 5: Solve for x
   x = 5,327,211,650.06/45,707.25
6. Step 6: Final answer
   x = 116,550.69