Finding the Third Proportional to 528,138 and 1,140,450

Step by Step Solution

1. Step 1: Write the proportion equation
   528,138 : 1,140,450 = 1,140,450 : x
2. Step 2: Convert to fraction form
   528,138/1,140,450 = 1,140,450/x
3. Step 3: Cross multiply
   528,138x = 1,140,450 × 1,140,450
4. Step 4: Simplify right side
   528,138x = 1,300,626,202,500
5. Step 5: Solve for x
   x = 1,300,626,202,500/528,138
6. Step 6: Final answer
   x = 2,462,663.55