Finding the Third Proportional to 542,870.50 and 1,072,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   542,870.50 : 1,072,116.50 = 1,072,116.50 : x
2. Step 2: Convert to fraction form
   542,870.50/1,072,116.50 = 1,072,116.50/x
3. Step 3: Cross multiply
   542,870.50x = 1,072,116.50 × 1,072,116.50
4. Step 4: Simplify right side
   542,870.50x = 1,149,433,789,572.25
5. Step 5: Solve for x
   x = 1,149,433,789,572.25/542,870.50
6. Step 6: Final answer
   x = 2,117,325.94