Finding the Third Proportional to 551,346 and 1,187,166

Step by Step Solution

1. Step 1: Write the proportion equation
   551,346 : 1,187,166 = 1,187,166 : x
2. Step 2: Convert to fraction form
   551,346/1,187,166 = 1,187,166/x
3. Step 3: Cross multiply
   551,346x = 1,187,166 × 1,187,166
4. Step 4: Simplify right side
   551,346x = 1,409,363,111,556
5. Step 5: Solve for x
   x = 1,409,363,111,556/551,346
6. Step 6: Final answer
   x = 2,556,222.61