Finding the Third Proportional to 606,843 and 874,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   606,843 : 874,138.50 = 874,138.50 : x
2. Step 2: Convert to fraction form
   606,843/874,138.50 = 874,138.50/x
3. Step 3: Cross multiply
   606,843x = 874,138.50 × 874,138.50
4. Step 4: Simplify right side
   606,843x = 764,118,117,182.25
5. Step 5: Solve for x
   x = 764,118,117,182.25/606,843
6. Step 6: Final answer
   x = 1,259,169.37