Finding the Third Proportional to 541,768.50 and 840,042

Step by Step Solution

1. Step 1: Write the proportion equation
   541,768.50 : 840,042 = 840,042 : x
2. Step 2: Convert to fraction form
   541,768.50/840,042 = 840,042/x
3. Step 3: Cross multiply
   541,768.50x = 840,042 × 840,042
4. Step 4: Simplify right side
   541,768.50x = 705,670,561,764
5. Step 5: Solve for x
   x = 705,670,561,764/541,768.50
6. Step 6: Final answer
   x = 1,302,531.55