Finding the Third Proportional to 543,856.50 and 1,178,109

Step by Step Solution

1. Step 1: Write the proportion equation
   543,856.50 : 1,178,109 = 1,178,109 : x
2. Step 2: Convert to fraction form
   543,856.50/1,178,109 = 1,178,109/x
3. Step 3: Cross multiply
   543,856.50x = 1,178,109 × 1,178,109
4. Step 4: Simplify right side
   543,856.50x = 1,387,940,815,881
5. Step 5: Solve for x
   x = 1,387,940,815,881/543,856.50
6. Step 6: Final answer
   x = 2,552,034.99