Finding the Third Proportional to 238,680 and 527,040

Step by Step Solution

1. Step 1: Write the proportion equation
   238,680 : 527,040 = 527,040 : x
2. Step 2: Convert to fraction form
   238,680/527,040 = 527,040/x
3. Step 3: Cross multiply
   238,680x = 527,040 × 527,040
4. Step 4: Simplify right side
   238,680x = 277,771,161,600
5. Step 5: Solve for x
   x = 277,771,161,600/238,680
6. Step 6: Final answer
   x = 1,163,780.63