Finding the Third Proportional to 72,940 and 157,040

Step by Step Solution

1. Step 1: Write the proportion equation
   72,940 : 157,040 = 157,040 : x
2. Step 2: Convert to fraction form
   72,940/157,040 = 157,040/x
3. Step 3: Cross multiply
   72,940x = 157,040 × 157,040
4. Step 4: Simplify right side
   72,940x = 24,661,561,600
5. Step 5: Solve for x
   x = 24,661,561,600/72,940
6. Step 6: Final answer
   x = 338,107.51