Finding the Third Proportional to 72,599.25 and 108,899.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,599.25 : 108,899.25 = 108,899.25 : x
2. Step 2: Convert to fraction form
   72,599.25/108,899.25 = 108,899.25/x
3. Step 3: Cross multiply
   72,599.25x = 108,899.25 × 108,899.25
4. Step 4: Simplify right side
   72,599.25x = 11,859,046,650.56
5. Step 5: Solve for x
   x = 11,859,046,650.56/72,599.25
6. Step 6: Final answer
   x = 163,349.44