Finding the Third Proportional to 554,140 and 1,211,960

Step by Step Solution

1. Step 1: Write the proportion equation
   554,140 : 1,211,960 = 1,211,960 : x
2. Step 2: Convert to fraction form
   554,140/1,211,960 = 1,211,960/x
3. Step 3: Cross multiply
   554,140x = 1,211,960 × 1,211,960
4. Step 4: Simplify right side
   554,140x = 1,468,847,041,600
5. Step 5: Solve for x
   x = 1,468,847,041,600/554,140
6. Step 6: Final answer
   x = 2,650,678.60