Finding the Third Proportional to 542,871.50 and 1,072,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   542,871.50 : 1,072,118.50 = 1,072,118.50 : x
2. Step 2: Convert to fraction form
   542,871.50/1,072,118.50 = 1,072,118.50/x
3. Step 3: Cross multiply
   542,871.50x = 1,072,118.50 × 1,072,118.50
4. Step 4: Simplify right side
   542,871.50x = 1,149,438,078,042.25
5. Step 5: Solve for x
   x = 1,149,438,078,042.25/542,871.50
6. Step 6: Final answer
   x = 2,117,329.94