Finding the Third Proportional to 551,340 and 1,187,155

Step by Step Solution

1. Step 1: Write the proportion equation
   551,340 : 1,187,155 = 1,187,155 : x
2. Step 2: Convert to fraction form
   551,340/1,187,155 = 1,187,155/x
3. Step 3: Cross multiply
   551,340x = 1,187,155 × 1,187,155
4. Step 4: Simplify right side
   551,340x = 1,409,336,994,025
5. Step 5: Solve for x
   x = 1,409,336,994,025/551,340
6. Step 6: Final answer
   x = 2,556,203.06