Finding the Third Proportional to 72,216.56 and 153,788.63

Step by Step Solution

1. Step 1: Write the proportion equation
   72,216.56 : 153,788.63 = 153,788.63 : x
2. Step 2: Convert to fraction form
   72,216.56/153,788.63 = 153,788.63/x
3. Step 3: Cross multiply
   72,216.56x = 153,788.63 × 153,788.63
4. Step 4: Simplify right side
   72,216.56x = 23,650,941,179.39
5. Step 5: Solve for x
   x = 23,650,941,179.39/72,216.56
6. Step 6: Final answer
   x = 327,500.23