Finding the Third Proportional to 554,142 and 1,211,964

Step by Step Solution

1. Step 1: Write the proportion equation
   554,142 : 1,211,964 = 1,211,964 : x
2. Step 2: Convert to fraction form
   554,142/1,211,964 = 1,211,964/x
3. Step 3: Cross multiply
   554,142x = 1,211,964 × 1,211,964
4. Step 4: Simplify right side
   554,142x = 1,468,856,737,296
5. Step 5: Solve for x
   x = 1,468,856,737,296/554,142
6. Step 6: Final answer
   x = 2,650,686.53