Finding the Third Proportional to 1,553,123 and 3,336,777

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,123 : 3,336,777 = 3,336,777 : x
2. Step 2: Convert to fraction form
   1,553,123/3,336,777 = 3,336,777/x
3. Step 3: Cross multiply
   1,553,123x = 3,336,777 × 3,336,777
4. Step 4: Simplify right side
   1,553,123x = 11,134,080,747,729
5. Step 5: Solve for x
   x = 11,134,080,747,729/1,553,123
6. Step 6: Final answer
   x = 7,168,833.86