Finding the Third Proportional to 72,569.25 and 109,947.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,569.25 : 109,947.38 = 109,947.38 : x
2. Step 2: Convert to fraction form
   72,569.25/109,947.38 = 109,947.38/x
3. Step 3: Cross multiply
   72,569.25x = 109,947.38 × 109,947.38
4. Step 4: Simplify right side
   72,569.25x = 12,088,425,269.39
5. Step 5: Solve for x
   x = 12,088,425,269.39/72,569.25
6. Step 6: Final answer
   x = 166,577.79