Finding the Third Proportional to 540,583.50 and 820,359

Step by Step Solution

1. Step 1: Write the proportion equation
   540,583.50 : 820,359 = 820,359 : x
2. Step 2: Convert to fraction form
   540,583.50/820,359 = 820,359/x
3. Step 3: Cross multiply
   540,583.50x = 820,359 × 820,359
4. Step 4: Simplify right side
   540,583.50x = 672,988,888,881
5. Step 5: Solve for x
   x = 672,988,888,881/540,583.50
6. Step 6: Final answer
   x = 1,244,930.50