Finding the Third Proportional to 53,891.75 and 72,498.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,891.75 : 72,498.75 = 72,498.75 : x
2. Step 2: Convert to fraction form
   53,891.75/72,498.75 = 72,498.75/x
3. Step 3: Cross multiply
   53,891.75x = 72,498.75 × 72,498.75
4. Step 4: Simplify right side
   53,891.75x = 5,256,068,751.56
5. Step 5: Solve for x
   x = 5,256,068,751.56/53,891.75
6. Step 6: Final answer
   x = 97,530.12